2008-2014 WRX/STI

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 The GrimmSpeed V2 Bypass Valve received many upgrades such as a redesigned the internal piston to eliminate the potential failure point...

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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

DESCRIPTION We designed this up pipe using our in-house FARO Arm along with the latest and greatest Solidworks CAD Software. This assures that we c...

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

DESCRIPTION These are the Grimmspeed Head to Exhaust Manifold Dual Port Gaskets. These particular gaskets see some of the highest temperatures when...

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

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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

DESCRIPTION The Subaru OEM Group N Pitch Stop Mount is designed to minimize drivetrain movement and improve power delivery. In performance driving,...

DESCRIPTION We all know how bad (and expensive!) the OEM Subaru Top Mount Intercooler Gaskets can be. They are one of the greatest source of leaks ...

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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 C...

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...

DESCRIPTION Replace your missing or damaged up-pipe hardware with the same high-quality kit included in all GrimmSpeed Up-Pipes. Designed for durab...

The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics ...

The Injector Dynamics ID1750-XDS fuel injectors are a high-flow, top-feed injector set built for Subaru owners who need serious fueling headroom fo...

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

DESCRIPTION The COBB Knob is designed to keep those extended shifting sessions exhilarating. The billet aluminum base is anodized in your choice ...

The COBB Redline Carbon Fiber Alternator Cover is constructed of 2x2 twill carbon fiber sheet and finished off with a high quality clear coat tha...

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...