Subaru Impreza GC8 Tuning Guide

Welcome to the ultimate tuning guide for the legendary Subaru Impreza GC8! This guide is designed to help you understand the rich history of this iconic car and how you can make the most of its outstanding performance potential through modifications and upgrades.

The Subaru Impreza GC8, a member of the first-generation Impreza lineup, was introduced in 1992 and quickly gained a reputation for its sporty handling and impressive all-wheel-drive capabilities. It was initially offered in various body styles, including sedan, coupe, and wagon, with the Subaru Impreza WRX and later the WRX STI version becoming the most sought-after by enthusiasts. The car's unique blend of practicality and performance has made it a popular choice among automotive fans ever since.

Subaru's involvement in motorsports, notably the World Rally Championship (WRC), played a significant role in the development and popularity of the GC8. With the likes of Colin McRae and Richard Burns behind the wheel, the Impreza became a dominant force in the rally world, securing multiple championships and solidifying the brand's performance credentials. This motorsport heritage can be felt in every aspect of the GC8, from its responsive chassis to its powerful boxer engine.

One of the key reasons the Subaru GC8 has remained a favorite among car enthusiasts is its tremendous potential for modification. The car's robust construction and versatile powertrain make it a fantastic platform for building a street, track, or rally machine. With a rich aftermarket and countless tuning options available, it's possible to tailor the GC8 to your specific needs and preferences.

In this comprehensive guide, we'll cover all aspects of tuning your Subaru GC, from engine upgrades and suspension improvements to exterior modifications and interior enhancements. Whether you're a seasoned tuner or new to the world of car modifications, we'll provide you with the information and inspiration you need to unlock your GC8's true potential.

Get ready to embark on an exciting journey of transforming your Subaru GC into the ultimate performance machine. Stay tuned, and let the adventure begin!

Subaru Impreza GC8 Suspension Upgrades

The suspension system is a crucial component of any performance vehicle, and the Subaru Impreza GC is no exception. When it comes to improving handling, stability, and ride quality, suspension tuning is a must. Whether you're looking to optimize your GC8 for spirited street driving, competitive track days, or off-road rally adventures, understanding the fundamentals of suspension tuning is essential. In this section, we will introduce you to the key concepts and components involved in suspension tuning for your Subaru GC.

Subaru Impreza GC8 Lowering Springs

H&R Lowering Springs

Lowering springs are a popular and cost-effective suspension upgrade for the Subaru Impreza GC, delivering improved handling and a more aggressive stance. These aftermarket springs are designed to lower the car's ride height compared to the stock springs, resulting in an improved appearance and a lowered center of gravity. This section will discuss the benefits and considerations when selecting lowering springs for your GC8.

Benefits and Considerations of Lowering Springs

Enhanced Aesthetics - Installing lowering springs improve the visual appeal of your GC8 by giving it a more aggressive and purposeful stance. Make sure you consider just how low your Subaru will be after installation, as a significant drop will result in an aggressive stance but may compromise ride quality and ground clearance.

Improved Handling - Lowering springs can enhance the handling and cornering capabilities of your GC8 by reducing body roll and increasing stability. When selecting springs, consider the spring rate, which determines the stiffness of the springs. A stiffer spring rate will provide better handling but may result in a harsher ride, while a softer spring rate may retain more comfort but not offer significant handling improvements.

Cost-Effectiveness - Compared to more complex and expensive suspension upgrades like coilovers, lowering springs offer an affordable way to improve both handling and appearance. However, it's essential to balance cost with quality by choosing a reputable brand with a proven track record when it comes to producing high-quality lowering springs for Subarus.

Compatibility - Lowering springs can typically be used with the stock shock absorbers, making them a straightforward upgrade. Still, it's essential to keep in mind that the reduced ride height may increase wear on the stock shocks over time. Upgrading the shock absorbers to match the new springs is generally encouraged for long-term durability.

Popular brands such as AST, H&R, and ST Suspensions offer a range of spring rates and ride height adjustments to suit different preferences and needs. When selecting lowering springs, prioritize your goals for performance and comfort to achieve the best possible balance.

In conclusion, lowering springs offer an accessible and cost-effective way to enhance the aesthetics and handling of your Subaru Impreza GC. By carefully considering factors such as ride height, spring rate, compatibility, and the reputation of the manufacturer, you can find the perfect balance between improved performance and maintaining ride comfort. Keep in mind that while lowering springs provide noticeable benefits, it's essential to complement them with other suspension upgrades, such as high-quality shocks, for long-term durability and the best possible driving experience. With the right set of lowering springs, your GC8 will not only look more aggressive but also handle with increased confidence and precision on the road.

Here’s our list of recommended lowering springs for the Subaru Impreza GC8

Subaru Impreza GC8 Coilovers

Fortune Auto Coilovers Subaru Impreza GC
Fortune Auto 500 Series Coilovers

Coilovers are a highly adjustable suspension upgrade for the Subaru Impreza GC, providing enhanced handling and the ability to fine-tune your vehicle's ride height and damping characteristics. These aftermarket suspension components combine the coil spring and shocks into a single unit, allowing for a wide range of adjustments and improved performance over stock suspension components. This section will discuss the benefits and considerations when selecting coilovers for your GC8.

Benefits and Considerations of Coilovers

Adjustability - One of the main advantages of coilovers is their adjustability. Most coilovers allow you to fine-tune your GC8's ride height, spring preload, and damping characteristics, enabling you to dial in the perfect balance between performance and comfort for your specific needs. This flexibility makes coilovers an excellent choice for those seeking to optimize their Impreza's suspension for various driving conditions, such as daily driving, track days, or off-road rallying.

Performance - Coilovers typically offer better handling and performance than stock suspension components or lowering springs alone. By using high-quality materials and precision engineering, coilovers can provide improved stability, reduced body roll, and more responsive handling. This can result in a more engaging and enjoyable driving experience for Subaru GC owners.

Installation and Compatibility - While coilovers offer increased adjustability and performance, they can also be more complex to install than simpler suspension upgrades like lowering springs. It is essential to have the necessary tools, knowledge, and expertise to ensure a proper installation. Additionally, some coilovers may require the use of additional components, such as adjustable control arms or camber plates, to achieve the desired alignment and suspension geometry.

Cost - Compared to lowering springs, coilovers are generally a more expensive suspension upgrade. However, the increased performance, adjustability, and potential for long-term durability can make them a worthwhile investment for serious enthusiasts and those seeking the best possible suspension setup for their Subaru.

Popular brands such as KW, BC Racing, and Fortune Auto offer a range of coilovers with varying levels of adjustability and performance characteristics to suit different preferences and budgets. When selecting coilovers, prioritize your goals for performance, adjustability, and compatibility to achieve the optimal balance for your Subaru Impreza GC.

In conclusion, coilovers provide a highly adjustable and performance-focused suspension upgrade for your Subaru GC8. By carefully considering factors such as adjustability, installation requirements, and cost, you can find the perfect set of coilovers that will take your vehicle's handling and performance to new heights. While coilovers may require a larger initial investment compared to simpler suspension upgrades, the improved performance, customization options, and long-term durability make them an excellent choice for GC8 enthusiasts seeking the ultimate driving experience.

Here’s our list of recommended coilovers for the Subaru Impreza GC8

Subaru Impreza GC8 Air Suspension

AirREX Subaru Impreza GC Air Suspension Kit
AirREX Full Air Suspension Kit 

Air suspension is another suspension upgrade for the Subaru GC8, offering an unparalleled level of versatility, comfort, and customization. This type of suspension system replaces traditional shocks and springs or coilovers with airbags or air springs, allowing the vehicle's ride height and stiffness to be adjusted on the fly. This section will discuss the benefits and considerations when choosing air suspension for your GC8.

Benefits and Considerations of Air Suspension

Versatility and Customization - One of the most significant advantages of air bags is the ability to adjust your GC8's ride height and stiffness with the push of a button. This allows you to easily adapt your suspension to various driving scenarios, such as daily driving, spirited canyon runs, or hard parking at your local car show. Additionally, air suspension systems often come with presets or customizable settings, enabling you to find the perfect balance between performance and comfort for any situation.

Comfort and Ride Quality - Air suspension systems are known for their smooth and comfortable ride quality, as the airbags can absorb more road imperfections than traditional springs. This makes air suspension an attractive option for GC8 owners seeking a comfortable ride without sacrificing performance capabilities.

Show-Stopping Aesthetics - With air suspension, you can achieve a dramatic, show-stopping appearance by lowering your GC8 to the ground when parked. This can make your vehicle stand out at car shows or simply impress your friends and fellow enthusiasts.

Installation and Maintenance - While air suspension offers numerous benefits, it can be more complex to install and maintain than traditional suspension upgrades. It's essential to have the necessary tools, knowledge, and expertise for a proper installation. Additionally, air suspension systems typically require more regular maintenance and inspections to ensure optimal performance and prevent potential issues.

Cost - Air suspension systems are generally more expensive than other suspension upgrades such as lowering springs or coilovers. However, the increased versatility, comfort, and customization options may justify the higher cost for some enthusiasts.

Popular brands such as AirREX, D2 Racing, and KSport offer a range of air suspension systems and components designed for various budgets and preferences. When selecting air suspension for your Subaru GC8, consider your goals for performance, adjustability, and cost to find the ideal balance for your needs.

In conclusion, air suspension provides a unique and versatile suspension upgrade for your Subaru GC, offering adjustable ride height, impressive comfort, and eye-catching aesthetics. By carefully considering factors such as installation, maintenance, and cost, you can determine whether air suspension is the right choice for your vehicle. Although air suspension may require a larger initial investment and ongoing maintenance, the unparalleled level of customization and adaptability make it an exciting option for GC8 enthusiasts seeking a truly personalized driving experience.

Here’s our list of recommended air suspension setups for the Subaru Impreza GC8

Subaru Impreza GC8 Sway Bars

Whiteline Subaru Impreza WRX GC Sway Bar Kit
Whiteline Sway Bars

Sway bars, also known as anti-roll bars or stabilizer bars, are a valuable suspension upgrade for the Subaru GC, designed to reduce body roll and improve handling dynamics. These aftermarket components connect the left and right wheels, working to distribute weight evenly across the vehicle during cornering. This section will discuss the benefits and considerations when choosing a sway bar for your GC8.

Benefits and Considerations of Sway Bars

Reduced Body Roll and Improved Handling - Sway bars help to minimize body roll during cornering, resulting in more balanced handling and improved traction. This can be particularly beneficial for GC8 owners who enjoy spirited driving, track days, or off-road rallying, as it can lead to increased confidence and control through corners.

Customization Options - Many aftermarket sway bar kits offer adjustable stiffness settings, allowing you to fine-tune your GC8's handling characteristics to suit your preferences and driving conditions. This added adjustability can help you achieve the optimal balance between performance and comfort.

Compatibility and Installation - Sway bars are compatible with most other suspension upgrades, such as lowering springs, coilovers, or air suspension. They typically require more advanced mechanical knowledge and tools for installation compared to simpler upgrades like strut bars, but the improvement in handling dynamics can make them well worth the effort.

Cost-Effectiveness - While a sway bar can be more expensive than some other suspension upgrades, they offer a noticeable improvement in handling performance, making them a valuable investment for GC8 owners seeking better cornering capabilities and overall driving dynamics.

Popular brands such as Whiteline, Cusco, and SuperPro Suspension offer a range of sway bar kits with varying levels of adjustability and stiffness to suit different preferences and needs. When selecting sway bars for your Impreza, prioritize your goals for performance, adjustability, and compatibility to achieve the ideal balance for your needs.

In conclusion, sway bars provide a potent suspension upgrade for your Subaru GC, reducing body roll and enhancing handling dynamics. By carefully considering factors such as adjustability, installation, and cost, you can determine whether sway bars are the right addition to your vehicle's suspension setup. While sway bars may require more advanced installation skills compared to simpler upgrades, their significant impact on handling performance and customizable options make them a popular choice for GC8 enthusiasts seeking to elevate their vehicle's cornering capabilities and overall driving experience.

Here’s our list of recommended lowering springs for the Subaru Impreza GC8

Subaru Impreza GC8 Strut Bars

Cusco Front Strut Bar Subaru Impreza GC
 Cusco Strut Bars

Strut bars, also known as strut braces or strut tower bars, are a straightforward yet effective suspension upgrade for the Subaru GC, designed to enhance chassis rigidity and improve handling performance. These aftermarket components connect the front or rear strut towers together, reinforcing the vehicle's chassis and reducing flex during cornering. This section will discuss the benefits and considerations when choosing strut bars for your GC8.

Benefits and Considerations of Strut Bars

Improved Handling and Chassis Rigidity - Strut bars help to minimize chassis flex by connecting the strut towers, resulting in more precise and predictable handling. This can be particularly beneficial for GC8 owners who enjoy spirited driving, track days, or off-road rallying, as it can help improve steering response and cornering stability.

Easy Installation and Compatibility - Strut bars are typically easy to install, requiring only basic hand tools and mechanical knowledge. They are also compatible with most other suspension upgrades, such as lowering springs, coilovers, or air suspension, making them an excellent addition to any performance-oriented suspension setup.

Cost-Effectiveness - Strut bars are generally an affordable suspension upgrade, making them an attractive option for GC8 owners looking to enhance their vehicle's handling without breaking the bank. However, it's important to balance cost with quality by choosing a reputable brand known for producing high-quality, durable strut bars.

Aesthetic Appeal - In addition to their functional benefits, strut bars can also add a touch of visual appeal to your GC8's engine bay or trunk area, particularly if they feature an attractive design or finish. This can make them a popular choice among enthusiasts seeking both performance and style.

Popular brands such as Cusco, Whiteline, and Megan Racing offer a range of strut bars designed to suit different preferences and budgets. When selecting strut bars for your Subaru GC, prioritize your goals for performance, ease of installation, and aesthetic appeal to find the ideal balance for your needs.

In conclusion, strut bars provide a simple yet effective suspension upgrade for your GC8, enhancing chassis rigidity and improving handling performance. By carefully considering factors such as installation, compatibility, and cost, you can determine whether strut bars are the right addition to your vehicle's suspension setup. While strut bars may not offer the same level of adjustability as coilovers or air suspension, their ease of installation and cost-effectiveness make them a popular choice for GC8 enthusiasts seeking a noticeable improvement in handling performance and chassis rigidity.

Here’s our list of recommended lowering springs for the Subaru Impreza GC8-

Subaru Impreza GC8 Adjustable Control Arms

Subaru Impreza WRX STi GC Control Arms
Megan Racing Control Arms

Adjustable suspension arms are a versatile and performance-oriented suspension upgrade for the Subaru GC8, designed to provide precise alignment adjustments and enhanced suspension performance. These aftermarket components replace the stock control arms, allowing you to fine-tune your vehicle's camber, caster, and toe settings to achieve optimal handling and tire wear characteristics. This section will discuss the benefits and considerations when choosing adjustable control arms for your GC8.

Benefits and Considerations of Adjustable Control Arms

Precision Alignment and Customization - Adjustable control arms enable you to dial in your GC8's alignment settings more precisely than with stock control arms, allowing you to tailor your vehicle's suspension geometry for various driving scenarios, such as daily driving, spirited driving, track days, or off-road rallying. This level of customization can lead to improved handling, better tire wear, and increased overall performance.

Compatibility with Other Suspension Upgrades - Adjustable control arms are often necessary when installing other suspension upgrades, such as lowering springs, coilovers, or air suspension systems, which can alter your vehicle's alignment settings. By using adjustable control arms, you can ensure that your GC8 maintains proper alignment, even with aggressive suspension modifications.

Enhanced Durability and Performance - Aftermarket adjustable control arms typically feature high-quality materials and construction, offering increased strength and durability compared to stock control arms. This can result in more consistent performance and longer-lasting components, making them a worthwhile investment for GC8 owners seeking the best possible suspension setup.

Installation and Cost - Adjustable control arms can be more complex to install than some other suspension upgrades, requiring advanced mechanical knowledge and tools to ensure proper installation and alignment. Additionally, they can be more expensive than stock control arms, but the added adjustability, performance, and durability often justify the investment for serious enthusiasts.

Popular brands such as Whiteline, Cusco, and SPC Performance offer a range of adjustable control arms designed to suit different preferences and budgets. When selecting adjustable control arms for your Subaru GC, prioritize your goals for performance, adjustability, and compatibility to find the ideal balance for your needs.

In conclusion, adjustable control arms provide a high-performance suspension upgrade for your Subaru GC, allowing for precise alignment adjustments and enhanced suspension performance. By carefully considering factors such as installation, cost, and compatibility with other suspension upgrades, you can determine whether adjustable control arms are the right addition to your vehicle's suspension setup. While adjustable control arms may require more advanced installation skills and a larger initial investment compared to simpler upgrades, their significant impact on handling performance and alignment customization makes them a popular choice for GC8 enthusiasts seeking the ultimate in suspension performance and adjustability.

Here’s our list of recommended adjustable control arms for the Subaru Impreza GC8

Subaru Impreza GC8 Limited Slip Differentials

Subaru Impreza WRX STi KAAZ LSD
Kaaz Limited Slip Differentials

Limited slip differentials (LSDs) are a highly effective performance upgrade for the Subaru GC8, designed to maximize traction and enhance handling dynamics. These aftermarket components replace the stock open differential and factory limited slip differents on some WRX STI models, ensuring that torque is more evenly distributed between the drive wheels, particularly during cornering or under heavy acceleration and deacceleration. This section will discuss the benefits and considerations when choosing a limited-slip differential for your GC8 WRX.

Benefits and Considerations of Limited Slip Differentials

Improved Traction and Handling - Limited slip differentials help to prevent wheel spin and maintain consistent traction, especially during cornering or during extreme acceleration and deacceleration. This can result in more predictable handling, better grip, and improved overall performance for your Subaru, whether you're participating in spirited driving, track days, or off-road rallying.

Types of LSDs - There are various types of limited slip differentials available on the market, each with its own unique characteristics and performance advantages. Mechanical clutch type LSDs are the most common type of LSD for the old Subaru Impreza WRX STI, and typically provide more predictable and consistent performance. It's essential to research and understand the different types of LSDs before making a decision, with a understanding of whether or not you will be frequently tracking the car.

Compatibility and Installation - Limited slip differentials are generally compatible with other performance upgrades, such as suspension, engine, or drivetrain modifications. However, installing an LSD typically requires advanced mechanical knowledge and specialized tools, as it involves disassembling and reassembling the vehicle's differential. It's highly recommended to have a professional mechanic or tuning shop perform the installation.

Cost and Maintenance - Limited slip differentials can be more expensive than some other performance upgrades, but the significant improvement in traction and handling often justifies the investment. Additionally, LSDs may require more frequent maintenance and inspection to ensure optimal performance and longevity, particularly for mechanical LSDs with clutch packs that can wear over time.

Popular brands such as Cusco, KAAZ, and OS Giken offer a range of limited slip differentials designed to suit different preferences and budgets. When selecting an LSD for your Subaru GC8, prioritize your goals for performance, compatibility, and cost to find the ideal balance for your needs.

In conclusion, limited slip differentials are a great performance upgrade for your Subaru GC, maximizing traction and enhancing handling dynamics. By carefully considering factors such as installation, cost, and compatibility with other performance upgrades, you can determine whether an LSD is the right addition to your vehicle's setup. While limited slip differentials may require more advanced installation skills and a larger initial investment compared to simpler upgrades, their significant impact on traction and handling performance makes them a popular choice for GC8 enthusiasts seeking the ultimate in driving dynamics and performance.

Here’s our list of recommended limited slip differentials for the Subaru Impreza GC8-

Subaru Impreza GC8 Brake Upgrades

Blue Subaru GC8 STI
"Piques_26" by Hector ''El Gato'' Maluenda is licensed under CC BY-SA 2.0

As a performance-oriented vehicle, the Subaru Impreza GC benefits greatly from brake system upgrades designed to improve stopping power, reduce brake fade, and increase driving confidence. Whether you're tackling winding back roads, participating in track days, or simply looking to enhance your vehicle's safety, upgrading your Subaru's brakes can provide substantial benefits. In this section, we will explore the various options when it comes to upgrading your brakes, discussing the advantages and considerations for each, and helping you determine the best brake system enhancements for your Impreza GC.

Subaru Impreza GC8 Brake Pads

Endless Brake Pads For Subaru Impreza WRX STI GC
Endless Brake Pads

One of the most straightforward and cost-effective brake upgrades for the Subaru Impreza GC is the replacement of stock brake pads with high-performance aftermarket options. Brake pads play a crucial role in the overall braking performance of your vehicle, and choosing the right compound can significantly enhance stopping power, heat resistance, and overall braking confidence. This section will discuss the benefits and considerations when selecting brake pads for your GC.

Benefits and Considerations of Performance Brake Pads

Improved Stopping Power - High-performance brake pads are designed to provide increased friction and stopping power compared to stock pads. This can result in shorter stopping distances and improved overall braking performance, which is particularly beneficial for spirited driving, track days, or off-road rallying.

Heat Resistance - Performance brake pads are typically made from compounds with higher heat resistance than stock pads. This can help reduce brake fade during heavy or prolonged braking, ensuring consistent and reliable stopping power even in demanding driving conditions.

Choosing the Right Compound - Brake pads are available in a variety of compounds, each with its unique performance characteristics. Some common options include organic, semi-metallic, and ceramic compounds. Organic pads generally offer smooth, quiet operation but may not perform as well in high-heat conditions. Semi-metallic pads provide improved heat resistance and stopping power but may produce more noise and dust. Ceramic pads offer a balance of low noise and dust production, good heat resistance, and excellent stopping power, but can be more expensive than other options.

Wear and Maintenance - While performance brake pads can provide significant improvements in stopping power and heat resistance, they may wear faster than stock pads, depending on the compound and driving conditions. Additionally, more aggressive compounds can cause increased wear on brake rotors. Regular inspection and maintenance of your brakes is crucial to ensure optimal performance and longevity.

Popular brands such as Hawk Performance, EBC Brakes, and Ferodo offer a range of brake pad compounds designed to suit different preferences and driving conditions. When selecting brake pads for your Subaru GC8, prioritize your goals for performance, noise and dust production, and maintenance requirements to achieve the ideal balance for your needs.

In conclusion, upgrading to performance brake pads can provide a noticeable improvement in stopping power and heat resistance for your GC8. By carefully considering factors such as compound type, compatibility, and maintenance requirements, you can determine the best brake pad upgrade for your vehicle's braking system. Performance brake pads are an affordable and effective way to enhance your GC8's braking performance, making them a popular choice for enthusiasts seeking improved stopping power and driving confidence.

Here’s our list of recommended brake pads for the Subaru Impreza GC

Subaru Impreza GC8 Brake Rotors

DBA Brake Rotors For Subaru Impreza WRX GC
DBA Brake Rotors

Upgrading your Subaru GC's brake rotors to high-performance aftermarket options can significantly improve heat dissipation, reduce brake fade, and enhance overall braking performance. Brake rotors, also known as brake discs, play a crucial role in the braking system by providing a surface for the brake pads to generate friction and slow down the vehicle. This section will discuss the benefits and considerations when selecting brake rotors for your GC8.

Benefits and Considerations of Performance Brake Rotors

Improved Heat Dissipation - High-performance brake rotors are designed to dissipate heat more efficiently than stock rotors, reducing the likelihood of your brakes fading during heavy or prolonged braking. This can result in more consistent and reliable stopping power, particularly in demanding driving conditions such as spirited driving, track days, or off-road rallying.

Types of Brake Rotors - Performance brake rotors are available in various designs, such as slotted, drilled, and vented. Slotted rotors help to channel away heat, dust, and gasses, while drilled rotors provide additional cooling through the drilled holes. Vented rotors combine the benefits of both slotted and drilled designs, offering improved heat dissipation and reduced brake fade. Each design has its unique performance characteristics, so it's essential to research and understand the different types of rotors before making a decision.

Enhanced Braking Performance - Performance brake rotors can improve braking performance by providing a more consistent and efficient surface for the brake pads to generate friction. This can lead to shorter stopping distances and improved overall braking confidence.

Wear and Maintenance - While performance brake rotors can provide significant improvements in heat dissipation and braking performance, they may wear faster than stock rotors, depending on the design and driving conditions. Regular inspection and maintenance of your brakes is crucial to ensure optimal performance and longevity.

Popular brands such as EBC, DBA, and StopTech offer a range of brake rotor designs and materials designed to suit different preferences and driving conditions. When selecting brake rotors for your Subaru GC8, prioritize your goals for performance, heat dissipation, and maintenance requirements to achieve the ideal balance for your needs.

In conclusion, upgrading to performance brake rotors can provide a noticeable improvement in heat dissipation and braking performance for your GC8. By carefully considering factors such as rotor design, compatibility, and maintenance requirements, you can determine the best brake rotor upgrade for your vehicle's braking system. Performance brake rotors are an effective way to enhance your GC8's braking performance, making them a popular choice for enthusiasts seeking improved stopping power and driving confidence.

Here’s our list of recommended lowering springs for the Subaru Impreza GC8

Subaru Impreza GC8 Brake Lines

Goodridge SS Brake Lines For Subaru Impreza WRX GC
Goodridge Brake Lines

Upgrading the brake lines on your Subaru GC is an effective way to improve pedal feel and braking responsiveness, particularly under demanding driving conditions. Stock rubber brake lines can expand under pressure, leading to a spongy pedal feel and reduced your brakes efficiency. Aftermarket stainless steel braided brake lines are designed to minimize expansion and provide a more direct, responsive brake pedal. This section will discuss the benefits and considerations when selecting performance brake lines for your GC8.

Benefits and Considerations of Stainless Steel Braided Brake Lines

Improved Pedal Feel - One of the most noticeable benefits of stainless steel braided brake lines is the improved pedal feel they provide. By minimizing expansion under pressure, these brake lines deliver a more consistent and direct brake pedal, resulting in greater control and confidence during braking.

Enhanced Braking Responsiveness - Stainless steel braided brake lines can also improve braking responsiveness by maintaining more consistent brake pressure throughout the system. This can lead to more predictable and reliable braking performance, particularly during spirited driving or track days.

Durability and Resistance - Aftermarket stainless steel braided brake lines are more resistant to wear, corrosion, and damage compared to stock rubber brake lines. This enhanced durability can result in a longer service life and reduced maintenance requirements.

Compatibility and Installation - Stainless steel braided brake lines are typically compatible with stock brake calipers and master cylinders, making them a straightforward upgrade. However, installation can require some mechanical know-how and tools, as it involves removing and reinstalling brake components and bleeding the brake system. It's highly recommended to have a professional mechanic or reputable shop perform the installation if you're not comfortable with the process.

Popular brands such as Goodridge, StopTech, and Agency Power offer a range of stainless steel braided brake lines designed to suit different preferences and budgets. When selecting brake lines for your Subaru, prioritize your goals for pedal feel, braking responsiveness, and installation complexity to find the ideal balance for your needs.

In conclusion, upgrading to stainless steel braided brake lines is an effective way to enhance pedal feel and braking responsiveness for your Subaru Impreza GC. By carefully considering factors such as compatibility, installation, and durability, you can determine whether performance brake lines are the right addition to your vehicle's braking system. While installation can require some mechanical knowledge, the significant improvement in braking performance and control makes stainless steel braided brake lines a popular choice for GC8 enthusiasts seeking to optimize their vehicle's stopping power.

Here’s our list of recommended brake lines for the Subaru Impreza GC8

Subaru Impreza GC8 Brake Fluid

Redline RL600 Brake Fluid
Redline RL-600 Brake Fluid DOT 4

Selecting the appropriate brake fluid for your Subaru is crucial for maintaining optimal braking performance and reliability, particularly under demanding driving conditions. Brake fluid is responsible for transferring hydraulic pressure from the brake master cylinder to the brake calipers, ensuring consistent and effective braking. High-performance brake fluids are designed to offer improved heat resistance, reducing the likelihood of brake fluid boiling and subsequent brake fade. This section will discuss the benefits and considerations when selecting high-performance brake fluid for your GC8.

Benefits and Considerations of High-Performance Brake Fluid

Improved Heat Resistance - One of the most significant benefits of high-performance brake fluid is its enhanced resistance to heat. Under demanding driving conditions, such as spirited driving or track days, brake fluid temperatures can rise rapidly, leading to the potential for brake fluid boiling and subsequent brake fade. High-performance brake fluids offer higher boiling points, reducing the risk of brake fade and ensuring consistent braking performance.

Enhanced Braking Reliability - By resisting heat better than standard brake fluids, high-performance brake fluids can help maintain consistent brake pressure and performance throughout the braking system. This can lead to more reliable and predictable braking, particularly during demanding driving situations.

Compatibility and Maintenance - High-performance brake fluids are generally compatible with stock brake components, making them a straightforward upgrade. However, it's essential to choose the appropriate brake fluid type (DOT 3, DOT 4, or DOT 5.1) based on your vehicle's specifications and requirements. Additionally, it's crucial to follow the recommended brake fluid replacement intervals, as brake fluid can degrade over time and lose its effectiveness.

Cost Considerations - High-performance brake fluids can be more expensive than standard brake fluids, but the benefits of improved heat resistance and braking reliability often justify the additional cost, particularly for drivers who participate in spirited driving or track events.

Popular brands such as Motul, Redline, and EBC offer a range of high-performance brake fluids designed to suit different preferences and budgets. When selecting brake fluid for your Subaru Impreza GC, prioritize your goals for heat resistance, braking reliability, and compatibility to find the ideal balance for your needs.

In conclusion, choosing the appropriate high-performance brake fluid is an essential aspect of ensuring optimal braking performance and reliability for your Subaru. By carefully considering factors such as heat resistance, compatibility, and maintenance requirements, you can determine the best brake fluid for your vehicle's braking system. While high-performance brake fluids may come at a higher cost, the significant improvement in braking performance and reliability make them a popular choice for GC8 enthusiasts seeking to optimize their vehicle's stopping power under demanding driving conditions.

Here’s our list of recommended brake fluid for the Subaru Impreza GC

Subaru Impreza GC8 Big Brake Kits

KSport BBK For Subaru WRX GC
KSport Big Brake Kits

Upgrading to a big brake kit for your Subaru GC8 can significantly enhance stopping power and heat dissipation, particularly under demanding driving conditions. Big brake kits typically consist of larger brake calipers, rotors, and performance brake pads, providing increased surface area for improved heat dissipation and braking performance. These kits are designed to offer superior stopping power and reduced brake fade compared to stock brake systems. This section will discuss the benefits and considerations when selecting a big brake kit for your GC8.

Benefits and Considerations of Big Brake Kits

Improved Stopping Power - One of the most notable benefits of big brake kits is the increased boost to stopping power they provide. The larger calipers and rotors offer enhanced clamping force and heat dissipation, resulting in shorter stopping distances and more consistent braking performance under demanding driving conditions.

Reduced Brake Fade - Big brake kits can significantly reduce brake fade, particularly during spirited driving or track days. The increased surface area and improved heat dissipation help maintain consistent brake performance and minimize the risk of brake fade caused by excessive heat build-up.

Aesthetic Appeal - In addition to their performance benefits, big brake kits can also enhance your Subaru's visual appeal. The larger calipers and rotors can provide an aggressive and purposeful look, particularly when paired with aftermarket wheels that showcase the upgraded brake setup.

Compatibility and Installation - Big brake kits often require larger wheels to accommodate the increased size of the calipers and rotors. It's crucial to verify compatibility with your existing wheel setup or plan for an upgrade if necessary. Installation of a big brake kit can be labor-intensive and requires specialized tools and knowledge, so it's highly recommended to have a professional mechanic or reputable shop perform the installation if you're not comfortable with the process.

Popular brands such as Brembo, StopTech, and KSport offer a range of big brake kits designed to suit different preferences and budgets. When selecting a big brake kit for your Subaru GC, prioritize your goals for stopping power, heat dissipation, and aesthetic appeal to find the ideal balance for your needs.

In conclusion, a big brake kit is an impactful upgrade for your Subaru GC, providing improved stopping power and heat dissipation. By carefully considering factors such as compatibility, installation complexity, and visual appeal, you can determine whether a big brake kit is the right addition to your vehicle's performance setup. While installation can be labor-intensive, the significant enhancement in braking performance and aesthetics makes big brake kits a popular choice for GC8 enthusiasts seeking to optimize their vehicle's stopping power and visual presence.

Here’s our list of recommended big brake kits for the Subaru Impreza GC

Subaru Impreza GC8 Engine Upgrades

The heart of any performance vehicle is its engine, and the Subaru GC chassis is no exception. With a robust boxer engine and a strong foundation for modifications, the GC8 has earned a reputation as a tunable and capable platform. Engine modifications and upgrades can add significant amounts of horsepower, torque, and overall performance, allowing you to tailor your GC8 to meet your specific needs and goals. 

In the following sections, we will discuss the benefits and considerations of specific engine modifications and upgrades for the Subaru GC8. By understanding the various options available and tailoring your modifications to suit your performance goals, you can unlock the full potential of your GC8's engine and enjoy a truly unique driving experience.

Subaru Impreza GC8 Cold Air Intakes

GruppeM Air Intake For Subaru Impreza WRX STI Version GC
GruppeM Air Intake 

Upgrading the air intake system is one of the simplest and most cost-effective ways to improve engine performance and throttle response for your Subaru GC. Aftermarket air intakes are designed to provide increased airflow to the engine, resulting in better combustion and more efficient power output. This section will discuss the benefits and considerations when selecting an aftermarket cold air intake for your GC8.

Benefits and Considerations of Aftermarket Air Intakes

Improved Throttle Response - Installing an aftermarket air intake can enhance throttle response by providing a more direct and unrestricted flow of air to the engine. This can result in a more immediate and engaging driving experience, particularly when accelerating.

Increased Power Output - By providing increased airflow to the engine, aftermarket air intakes can contribute to improved power output. While the gains may be modest, they can still be noticeable, especially when combined with other performance upgrades such as exhausts and engine tuning.

Enhanced Engine Sound - Aftermarket air intakes can also deliver a more aggressive engine sound, as they typically allow more induction noise to be heard. This can enhance the overall driving experience and add to the sporty character of your GC8.

Easy Installation - Air intake systems are generally straightforward to install, often requiring only basic hand tools and minimal mechanical knowledge. This makes them an accessible upgrade for most GC8 owners.

Maintenance and Filter Options - Some aftermarket air intakes utilize reusable air filters, which can be cleaned and reinstalled, reducing maintenance costs over time. It's essential to choose a quality filter that provides adequate filtration while still allowing for increased airflow.

Popular brands such as APEXi, Blitz, and Injen offer a range of air intake options designed to suit different preferences and budgets. When selecting an air intake for your Subaru GC8, prioritize your goals for throttle response, power gains, and engine sound to find the ideal balance for your needs.

In conclusion, upgrading to an aftermarket air intake is an effective way to enhance engine performance and throttle response for your Subaru GC8. By carefully considering factors such as installation complexity, maintenance requirements, and desired sound characteristics, you can determine whether an aftermarket air intake is the right addition to your vehicle's performance setup. While the power gains may be modest, the improved throttle response and engaging engine sound can contribute to a more enjoyable driving experience for GC8 enthusiasts seeking to optimize their vehicle's performance.

Here’s our list of recommended air intakes for the Subaru Impreza GC

Subaru Impreza GC8 Exhaust Systems

HKS Hi-Power Catback Exhaust For Subaru WRX GC
HKS Hi-Power Exhaust

Upgrading the exhaust system on your Subaru Impreza GC can provide significant performance improvements, as well as a more aggressive and engaging exhaust note. Aftermarket exhausts are designed to improve exhaust flow, reduce backpressure, and increase power and torque output. This section will discuss the benefits and considerations when selecting an aftermarket exhaust system for your GC8.

Benefits and Considerations of Aftermarket Exhaust Systems

Increased Power and Torque - One of the primary benefits of an aftermarket exhaust system is the potential for increased power and torque output. By reducing back pressure and improving exhaust flow, your GC8's engine can breathe more efficiently, resulting in better combustion and more effective power production.

Improved Exhaust Note - An aftermarket exhaust system can also provide a more aggressive and engaging exhaust note, adding to the driving experience and enhancing the sporty character of your GC8. The sound can be tuned to your preference, ranging from mild to wild, depending on the exhaust system and components chosen.

Weight Reduction - Many aftermarket exhaust systems are constructed from lightweight materials, such as stainless steel or titanium, which can help reduce overall vehicle weight. This weight reduction can contribute to improved handling and performance.

Visual Appeal - Some aftermarket exhaust systems feature larger or uniquely styled exhaust tips, which can enhance the visual appeal of your GC8's rear end.

Installation and Fitment - Although most aftermarket exhaust systems are designed to be bolt-on upgrades, it's essential to verify fitment and compatibility with your specific GC8 model. Installation can typically be done with basic hand tools, but it may require specialized knowledge or equipment, such as welding, for a seamless fit.

Popular brands such as HKS, Invidia, and Borla offer a range of exhaust options designed to suit different preferences and budgets. When selecting an exhaust system for your Subaru GC8, prioritize your goals for power gains, exhaust note, and visual appeal to find the ideal balance for your needs.

In conclusion, an aftermarket exhaust system can be an impactful upgrade for your GC8, providing increased power and torque, an engaging exhaust note, and improved visual appeal. By carefully considering factors such as fitment, installation complexity, and desired sound characteristics, you can determine whether an aftermarket exhaust system is the right addition to your vehicle's performance setup. While the power gains may vary, the improved exhaust note and potential weight reduction can contribute to a more enjoyable driving experience for GC8 enthusiasts seeking to optimize their vehicle's performance and aesthetic appeal.

Here’s our list of recommended aftermarket exhausts for the Subaru Impreza GC8

Subaru Impreza GC8 Turbo Kits

Kinugawa TD06 Turbocharger For Subaru EJ20s
Kinugawa Turbochargers

For those of you reading that were lucky enough to be in a market that received the the first generation Subaru Impreza WRX STi version GC8 or have had the chance to import your own WRX STi GC8, upgrading the turbocharger maybe something that you’ve considered. Installing an upgraded turbocharger can lead to significant performance improvements, transforming your Subaru into a more powerful and responsive machine, ready to take on road you throw its way. In this section we will discuss the benefits and considerations when selecting a turbo upgrade for Subaru GC WRX STi models.

Benefits and Considerations of Turbo Upgrades

Increased Power and Torque - One of the primary benefits of upgrading the turbo is the potential for increased power and torque output. By selecting the appropriate turbo and supporting modifications, you can optimize engine performance and boost levels, resulting in a more exhilarating driving experience.

Improved Throttle Response - A well-matched turbo upgrade can improve throttle response, providing quicker spool-up times and a more linear power delivery. This improvement can lead to a more engaging and enjoyable driving experience.

Efficiency and Reliability - Upgrading your turbo can increase engine efficiency, leading to improved fuel economy and reduced exhaust emissions. Furthermore, choosing high-quality components and working with an experienced tuner can ensure that your engine remains reliable and performs optimally under various driving conditions.

Installation and Compatibility - When upgrading your turbo, it's essential to verify compatibility with your specific WRX STi GC model. Upgrading the turbo may require additional modifications, such as a custom manifold, downpipe, or intercooler kit. Working with an experienced tuner and selecting the appropriate supporting modifications will ensure a seamless integration of the upgraded turbo system.

Popular brands such as Mamba, Kinugawa, and IHI offer a range of turbo options designed to suit different performance goals and budgets. When selecting a turbo upgrade for your WRX STi GC, prioritize your goals for power gains, throttle response, and reliability to find the ideal balance for your needs.

In conclusion, upgrading the turbo on your Subaru can significantly enhance performance, throttle response, and overall driving enjoyment. By carefully considering factors such as compatibility, installation complexity, and desired performance characteristics, you can determine whether a turbo upgrade is the right addition to your vehicle's performance setup. While the power gains may vary, the improved throttle response and potential efficiency improvements can contribute to a more enjoyable driving experience for WRX STi GC enthusiasts seeking to optimize their vehicle's performance and capabilities.

Here’s our list of recommended turbo upgrades for the Subaru Impreza GC8


Subaru Impreza GC8 Intercoolers

CXRacing FMIC Kit For Subaru Impreza Chassis Code GC
CXRACING FMIC Kit

Upgrading the intercooler on your Subaru GC WRX STi  can provide significant performance improvements and increased engine efficiency. Intercoolers play a crucial role in cooling the charged air coming from the turbo before it enters the engine, ensuring optimal combustion and power output. This section will discuss the benefits and considerations when selecting an aftermarket intercooler for your WRX STi GC.

Benefits and Considerations of Aftermarket Intercoolers

Increased Power and Efficiency - One of the primary benefits of an aftermarket intercooler is the potential for increased power and efficiency. By cooling the charged air more effectively, the intercooler can help prevent detonation, improve combustion, and increase power output. A more efficient intercooler also contributes to improved fuel economy and reduced exhaust emissions.

Heat Soak Prevention - Upgrading your intercooler can help prevent heat soak, a condition where the intercooler becomes less effective due to increased temperatures under heavy load or spirited driving. An aftermarket intercooler can better withstand prolonged periods of hard driving, ensuring consistent power delivery.

Improved Throttle Response - A well-designed aftermarket intercooler can also improve throttle response, leading to a more engaging and enjoyable driving experience.

Installation and Compatibility - When upgrading the intercooler on your Subaru GC WRX STi, it's essential to verify compatibility with your specific GC WRX STi  model. Aftermarket intercoolers come in two main configurations: top-mount and front-mount. While top-mount intercoolers are easier to install and maintain the factory appearance, front-mount intercoolers often provide superior cooling performance.

Popular brands such as CXRacing, Plazmaman, and HDi offer a range of intercooler options designed to suit different performance goals and budgets. When selecting an intercooler for your Subaru GC WRX STi, prioritize your goals for power gains, efficiency, and ease of installation to find the ideal balance for your needs.

In conclusion, an aftermarket intercooler can be an impactful upgrade for your Subaru GC WRX STi, providing increased power, improved efficiency, and enhanced throttle response. By carefully considering factors such as fitment, installation complexity, and desired cooling performance, you can determine whether an aftermarket intercooler is the right addition to your vehicle's performance setup. While the power gains may vary, the improved engine efficiency and heat soak prevention can contribute to a more enjoyable driving experience for WRX STi GC enthusiasts seeking to optimize their vehicle's performance and reliability.

Here’s our list of recommended intercooler kits for the Subaru Impreza GC8

Subaru Impreza GC8 Motor Swaps

Engine swaps can be an enticing option for USDM Subaru GC owners looking to significantly increase performance and unlock new levels of driving enjoyment. While numerous engine options exist for engine swaps, focusing on Subaru engines, such as the EJ20T, EJ22T, and EJ257, can provide compatibility advantages and maintain the unique character of your GC. In this section, we will discuss various Subaru engine options for engine swaps and the considerations to keep in mind when embarking on such a project.

Subaru Engine Options for Swaps

EJ20T - The EJ20T is a 2.0L turbocharged engine commonly found in various JDM and international market Subaru models, including the WRX and some Legacy models. This engine offers a solid platform for performance upgrades and can be a great starting point for GC owners seeking a turbocharged powerplant.

EJ22T - The EJ22T is a 2.2L turbocharged engine that was available in the USDM Subaru Legacy from 1991-1994. This engine is known for its robust construction, making it a popular choice for those seeking a strong foundation for building high-performance applications.

EJ257 - The EJ257 is a 2.5L turbocharged engine found in the USDM Subaru WRX STI models. This engine provides significant power and torque gains over the EJ20 and EJ22T, making it an attractive option for those seeking maximum performance from their GC.

Considerations for Engine Swaps

Compatibility and Integration - When swapping a Subaru engine into your Impreza GC, it's essential to verify compatibility with your specific GC model. Engine mounts, wiring harnesses, and ECU modifications may be necessary to ensure seamless integration.

Transmission and Drivetrain - Upgrading to a more powerful engine may require upgrading the transmission and drivetrain components to handle the increased power and torque.

Suspension and Brakes - With increased power comes the need for improved handling and stopping capabilities. Upgrading the suspension and brakes can help maintain balance and control in your GC.

Cost and Complexity - Engine swaps can be complex and costly, particularly when considering the supporting modifications required. It's important to budget for the entire project and consult with experienced professionals to ensure success.

In conclusion, engine swaps can significantly enhance the performance and driving experience of your USDM Subaru GC. By carefully considering factors such as compatibility, supporting modifications, and overall project complexity, you can determine whether an engine swap is the right option for your vehicle. Swapping in a Subaru EJ20T, EJ22T, or EJ257 engine can unlock new levels of performance and enjoyment, while maintaining the unique character and essence of your Impreza GC.

Subaru Impreza GC8 ECU Tuning

ECU (Engine Control Unit) tuning is a powerful and popular way to optimize your Subaru Impreza GC8's performance, whether it's in its stock form or has been modified with aftermarket parts. ECU tuning involves adjusting the engine management parameters, such as fuel delivery, ignition timing, and boost pressure, to improve power, torque, and drivability. This section will discuss the benefits and considerations of ECU tuning for your GC8.

Benefits and Considerations of ECU Tuning

Increased Power and Torque - ECU tuning can unlock additional power and torque from your GC8's engine by optimizing parameters such as fuel delivery, ignition timing, and boost pressure (if equipped with a turbo). These improvements can lead to a more engaging driving experience and faster acceleration.

Improved Drivability - Proper ECU tuning can enhance the overall drivability of your GC8 by smoothing out the powerband, reducing turbo lag (if applicable), and improving throttle response. This can result in a more enjoyable and predictable driving experience.

Customization for Modifications - If you have installed aftermarket performance parts on your GC8, such as an upgraded intake, exhaust, or turbocharger, ECU tuning can be crucial for optimizing these components and ensuring they work together harmoniously. A custom ECU tune can take full advantage of your modifications and maximize their performance potential.

Fuel Efficiency - While the primary goal of ECU tuning is often to increase power, it can also lead to improved fuel efficiency in some cases. By optimizing the fuel delivery and ignition timing, the engine can operate more efficiently, potentially leading to better fuel economy.

Risk of Engine Damage - It's important to consider the potential risks associated with ECU tuning. Aggressive tuning can put additional stress on the engine and its components, potentially leading to premature wear or failure. It's crucial to work with a reputable tuner who understands the limits of your specific engine and can provide a safe and reliable tune.

When selecting an ECU tuner, it's essential to choose a reputable company with experience tuning Subaru engines specifically. Companies such as COBB Tuning, OpenECU, and ECUTEK offer tuning solutions tailored to the Subaru platform, ensuring that your GC8 receives a safe and reliable tune.

In conclusion, ECU tuning can be a powerful way to unlock your Subaru Impreza GC8's full potential, providing increased power, torque, and improved drivability. By carefully considering factors such as the potential risks, legal and warranty implications, and selecting a reputable tuner, you can ensure that your ECU tuning experience is both safe and rewarding. When done correctly, ECU tuning can transform your GC8 into a more enjoyable and responsive driving machine, making the most of your vehicle's performance capabilities.

Subaru Impreza GC8 Transmission Upgrades

Modified Subaru Impreza GC8 STI
"Subaru Impreza WRX STi Version 6" by FotoSleuth is licensed under CC BY 2.0

The Subaru Impreza GC8, a classic all-wheel-drive sports car known for its rallying prowess, has become an icon among automotive enthusiasts. To further enhance your GC8's performance and driving experience, consider upgrading its transmission. 

By investing in transmission upgrades for your Subaru Impreza GC8, you can unlock the true potential of your vehicle, making it more enjoyable to drive and ensuring it performs at its peak. With these benefits in mind, it's clear that upgrading your GC8's closer ratio gearbox is a smart choice for any performance-focused enthusiast.

Subaru Impreza GC8 Clutches

OS Giken Clutch Kit For Subaru WRX GC
OS Giken Clutches

Upgrading the clutch on your Subaru Impreza GC8 is an essential consideration when improving your vehicle's performance, particularly if you plan on increasing power and torque output. The clutch is a critical component in a manual transmission, responsible for transferring power from the engine to the drivetrain. Performance aftermarket clutches are designed to provide improved torque capacity, durability, and heat resistance compared to stock clutches. This section will discuss the benefits and considerations when selecting a performance clutch for your GC8.

Benefits and Considerations of Performance Clutches

Increased Torque Capacity - Performance clutches are engineered to handle higher torque loads, making them ideal for vehicles with modified engines or those used for spirited driving or track days. By upgrading to a clutch with a higher torque capacity, you can help ensure your drivetrain's reliability and longevity.

Enhanced Durability - High-performance clutches are typically constructed using more robust materials and designs than stock clutches, providing improved heat resistance and wear characteristics. This can result in longer clutch life and more consistent performance, particularly under demanding driving conditions.

Driveability and Pedal Feel - When selecting a performance clutch, it's essential to consider the balance between performance and drivability. More aggressive clutch designs can provide increased torque capacity and durability but may result in a stiffer pedal feel and more abrupt engagement, which may not be suitable for daily driving or inexperienced drivers.

Compatibility and Installation - Performance clutches are generally compatible with stock transmission and flywheel components, but it's crucial to verify compatibility with your specific setup, particularly if you have already upgraded other drivetrain components. Installation of a new clutch can be labor-intensive and requires specialized tools, so it's highly recommended to have a professional mechanic or reputable shop perform the installation if you're not comfortable with the process.

Popular brands such as XClutch, ACT, and SPEC offer a range of performance clutches designed to suit different preferences and performance needs. When selecting a clutch for your Subaru Impreza GC8, prioritize your goals for torque capacity, durability, and driveability to find the ideal balance for your needs.

In conclusion, upgrading to a performance clutch can provide significant benefits in terms of torque capacity and durability for your Subaru Impreza GC8, particularly if you plan on increasing engine performance or participating in track days. By carefully considering factors such as compatibility, installation complexity, and driveability, you can determine the best clutch upgrade for your vehicle's performance setup. While the installation process can be labor-intensive, the improved reliability and performance offered by a high-quality performance clutch make them a popular choice for GC8 enthusiasts seeking to enhance their vehicle's capabilities.

Here’s our list of recommended clutches for the Subaru Impreza GC8

Subaru Impreza GC8 Flywheels

Competition Clutch Flywheel For Subaru WRX GC8
Competition Clutch Flywheels

Upgrading the flywheel on your Subaru Impreza GC8 can significantly improve engine responsiveness and driving dynamics by reducing rotational mass in the drivetrain. A flywheel is a crucial component in a manual transmission, responsible for storing and releasing energy as the engine's crankshaft rotates. Lightweight aftermarket flywheels are designed to reduce the overall mass of the drivetrain, resulting in quicker throttle response and improved acceleration. This section will discuss the benefits and considerations when selecting a lightweight flywheel for your GC8.

Benefits and Considerations of Lightweight Flywheels

Improved Engine Responsiveness - By reducing the rotational mass in the drivetrain, a lightweight flywheel allows the engine to rev more freely and respond more quickly to throttle inputs. This can result in a more engaging and lively driving experience, particularly during spirited driving or track days.

Enhanced Acceleration - A lighter flywheel can also improve acceleration, as the reduced mass allows the engine to transfer power to the wheels more efficiently. This can lead to faster 0-60 times and improved overall performance.

Compatibility and Installation - Lightweight flywheels are typically compatible with the stock clutch and transmission components, making them a relatively straightforward upgrade. However, installation can be labor-intensive and require specialized tools, as it involves removing and reinstalling the transmission. It's highly recommended to have a professional mechanic or reputable shop perform the installation if you're not comfortable with the process.

Noise and Vibration - One consideration when upgrading to a lightweight flywheel is the potential increase in noise and vibration. Due to their reduced mass, lightweight flywheels can transmit more engine noise and vibration to the cabin, which may not be desirable for some drivers. It's essential to balance the performance benefits with potential noise and vibration concerns when choosing a flywheel for your GC8.

Popular brands such as Ralco RZ, Fidanza, and ACT offer a range of lightweight flywheels designed to suit different preferences and budgets. When selecting a flywheel for your Subaru Impreza GC8, prioritize your goals for engine responsiveness, acceleration, and noise and vibration characteristics to find the ideal balance for your needs.

In conclusion, a lightweight flywheel is a valuable upgrade for your Subaru Impreza GC8, providing improved engine responsiveness and acceleration. By carefully considering factors such as compatibility, installation complexity, and potential noise and vibration concerns, you can determine whether a lightweight flywheel is the right addition to your vehicle's performance setup. While installation can be labor-intensive, the significant impact on driving dynamics and engine responsiveness makes lightweight flywheels a popular choice for GC8 enthusiasts seeking to enhance their driving experience.

Here’s our list of recommended flywheels for the Subaru Impreza GC8

Subaru Impreza GC8 Short Shifters

Kartboy Short Shifter For Subaru WRX GC
Kartboy RS Shifter

Installing a short shifter in your Subaru Impreza GC8 is an effective way to enhance the driving experience by reducing shift throw and improving shift feel. A shortened shifter is designed to modify the throw of the stock shifter linkage, resulting in a shorter distance between gears and a more precise, direct feel during gear changes. This section will discuss the benefits and considerations when selecting a short shifter for your GC8.

Benefits and Considerations of Short Shifters

Improved Shift Feel - One of the most noticeable benefits of a short shifter is the enhanced shift feel it provides. By reducing the distance the shifter needs to travel between gears, shifts become quicker and more precise, giving the driver a greater sense of control and engagement with the vehicle.

Faster Gear Changes - A shorter throw not only improves shift feel but also allows for faster gear changes, which can be particularly beneficial during spirited driving or track days. This increased shift speed can help improve overall driving dynamics and performance.

Compatibility and Installation - Short shifters are typically compatible with the stock transmission and shifter components, making them a straightforward upgrade. However, installation can require some mechanical knowledge and tools, as it involves disassembling and reassembling the shifter assembly. It's highly recommended to have a professional mechanic or reputable shop perform the installation if you're not comfortable with the process.

Adjustability and Customization - Some short shifters offer adjustable throw reduction, allowing the driver to fine-tune the shifter feel to their personal preference. Additionally, short shifters can be paired with aftermarket shift knobs for further customization and improved ergonomics.

Popular brands such as Kartboy, Fidanza, and Torque Solution offer a range of short shifters designed to suit different preferences and budgets. When selecting a short shifter for your Subaru Impreza GC8, prioritize your goals for shift feel, adjustability, and installation complexity to find the ideal balance for your needs.

In conclusion, a short shifter is an excellent upgrade for your Subaru Impreza GC8, providing an improved shift feel and faster gear changes. By carefully considering factors such as compatibility, adjustability, and installation, you can determine whether a short shifter is the right addition to your vehicle's setup. While short shifters may require some mechanical knowledge for installation, their significant impact on driving dynamics and performance makes them a popular choice for GC8 enthusiasts seeking a more engaging and precise shifting experience.

Here’s our list of recommended short shifters for the Subaru Impreza GC8


OverRev’s Subaru Impreza GC8 Modification Guide

"DSC_1178" by Paul Langlois is licensed under CC BY 2.0

In this comprehensive tuning guide, we've covered a wide range of performance upgrades for your Subaru Impreza GC8, touching on aspects such as suspension, braking, drivetrain, and engine modifications. Each of these upgrades can contribute to a more engaging and enjoyable driving experience, helping you to unlock the full potential of your GC8 and tailor it to your specific needs and preferences.

As you start modifying your Subaru GC, it's important to carefully consider your goals, budget, and the potential impact of each modification on your vehicle's performance, reliability, and legality. By doing so, you can create a balanced and harmonious package that delivers the performance improvements you desire while maintaining the unique character of your Subaru Impreza GC.

We'd like to thank you for taking the time to read our Subaru GC tuning guide. We hope that you've found the information useful and that it will serve as a valuable resource as you explore the exciting world of automotive performance upgrades. If you're interested in learning more about tuning and upgrading other Subaru models, we encourage you to check out our other tuning guides, specifically our Subaru WRX STI tuning guides, which provide in-depth information on maximizing the performance of these iconic vehicles.

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