2002-2007 WRX/STI

DESCRIPTION The GrimmSpeed Turbo To Downpipe Gasket is made using a premium multi-layer steel with a stainless steel fire-ring, this gasket surpass...

The COBB Shifter Bushing Pack includes both the front and rear shifter bushings. This upgraded bushings greatly improves the feel of the shifter ...

DESCRIPTION The Muteki Black SR48 Open Ended Lug Nuts (M12x1.25) are a lightweight, durable, and affordable upgrade designed for Subaru owners ru...

DESCRIPTION GrimmSpeed's new Overtake BB500 Turbocharger is another powerful turbocharger designed by GrimmSpeed. The Overtake Ball-Bearing 500-Ser...

There is nothing we like to see more than an AP peeking over the dash. With the V3 holster, there is no reason not to run your AP in-vehicle. Thi...

DESCRIPTION The Stage 1 Drivetrain Package Includes: Subaru 6-Speed Front Shifter Bushing; Subaru Rear Shifter Bushing; 6-Speed Double Adjustabl...

DESCRIPTION The GrimmSpeed Red Tallboy Shift Knob is a great way to add modern looks and styling to the interior of your vehicle while providing th...

DESCRIPTION We know that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust parts on your car. We...

EMISSIONS This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION COBB Exhaust ga...

The COBB Subaru Pitch Stop Mount is constructed of CNC machined 6061-T6 aluminum and finished with black anodizing. The COBB logo is laser engrav...

DESCRIPTION Tired of your Accessport OBDII cable getting in the way? Our new OBDII Universal Cable features a much lower profile OBD connector...

EMISSIONS SEMA Certified - SC -GRM01-0145 for listed fitments CARB Certified - EO - #D-896 for listed fitments DESCRIPTION We designed this up pip...

DESCRIPTION This is the GrimmSpeed Top Mount Intercooler. Once you start performing modifications that add more horsepower and more boost, eventual...

DESCRIPTION Have you ever thought to yourself, "Man, Trent, you've got all of these awesome parts but how are you supposed to let your crew know yo...

DESCRIPTION Upgrade your braking performance with the FactionFab V2 Front Brake Pads, engineered specifically for the 2004-2017 Subaru WRX STI mode...

Upgrading the fuel system for your Subaru has never been easier. At the heart of our upgrade kit is an AEM ethanol-compatible fuel pump. We round...

This is the factory spark plug as installed in the 2018 Subaru WRX STI Type RA and 2019 Subaru WRX STI. The main differences are a heat range tha...

EMISSIONS This part is in the process of external testing with the EO process ongoing. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY EMISSION CO...

DESCRIPTION Our Subaru Battery Tie Down is professionally designed in CAD and machined from quality billet aluminum. A black anodized finish and ...

The IAG Unequal Length Headers are the perfect way to add more performance to your Subaru WRX STI and still keep the iconic "Boxer Rumble." The hea...

DESCRIPTION This is the GrimmSpeed Downpipe Donut Gasket. This gasket is available as a direct replacement for your leaking OEM donut gasket and fe...

DESCRIPTION The FactionFab Wheel Spacers are perfect for those looking to gain clearance with their wheels, add a wider stance, or fill out a body ...

DESCRIPTION Upgrade your cooling system with the GrimmSpeed Titanium Radiator Cap, rated at 1.3 bar for improved thermal control and reliability. B...

DESCRIPTION Clean up that engine bay and show your GrimmSpeed pride with our newly-designed Subaru Battery Tiedown. Laser cut, then CNC bent and po...