Engine ComponentsEngine CoversNew ProductsPerformance Parts
The Kartboy 02-14 Subaru WRX/04-21 STI/04-13 Forester EJ Alternator Cover - Aluminum is an aftermarket upgrade designed to enhance the appearance and performance of...
New ProductsPerformance PartsSuspensionSway Bar Endlinks
The Kartboy 04-07 Subaru STI Rear Endlinks are performance-enhancing components designed to upgrade the suspension of your 2004-2007 Subaru STI. These endlinks replace the...
New ProductsPerformance PartsSuspensionSway Bar Endlinks
The Kartboy 15-17 Subaru STI Front Endlinks - 12mm are high-performance suspension components designed to replace the stock endlinks on 2015-2017 Subaru STI models....
The Kartboy 2005 Subaru Legacy Shifter is an aftermarket performance part designed to improve the shifting experience in your 2005 Subaru Legacy. This short...
New ProductsPerformance PartsSuspensionSway Bar Endlinks
The Kartboy 2008+ Subaru Rear Endlink Kit w/Hardware & Spacers is an aftermarket suspension component designed to improve the handling and performance of your...
New ProductsPerformance PartsSuspensionSway Bar Endlinks
The Kartboy 97-07 Subaru RS/WRX Rear Endlinks are a performance suspension upgrade designed for 1997-2007 Subaru RS and WRX models. These endlinks replace the...
New ProductsPerformance PartsSuspensionSway Bar Endlinks
The Kartboy 97-07 Subaru RS/WRX Wagon Solid Front Endlinks are a high-performance suspension upgrade designed specifically for 1997-2007 Subaru RS and WRX Wagon models....
Brake AdaptersBrakes, Rotors & PadsNew ProductsPerformance Parts
The Kartboy Subaru Big Brake Adapters are designed to allow the installation of larger brake calipers and rotors onto Subaru vehicles. These adapters are...
Best SellersDrivetrainNew ProductsPerformance PartsShifter Bushings
The Kartboy Subaru Cable Shift Bearing Kit is an aftermarket upgrade designed to improve the performance and precision of your Subaru's shifter. By replacing...
Engine ComponentsEngine MountsNew ProductsPerformance Parts
The Kartboy Subaru Engine Pitch Mount is an aftermarket part designed to improve the stability and performance of your Subaru's engine by reducing engine...
The Kartboy Subaru Forester XT Shifter is a high-performance, aftermarket shifter designed to enhance your driving experience by providing more precise and shorter gear...
The Kartboy Subaru Impreza RS Shifter is a high-performance aftermarket shifter designed to enhance the driving experience of Subaru Impreza RS owners. This shifter...
The Kartboy Subaru Rear Differential/Carrier Wedge Lock is an essential performance upgrade designed to improve the stability and handling of your Subaru, particularly during...