2008-2014 WRX/STI

SAFEGUARD YOUR SUBARU The IAG Performance Air / Oil Separator (AOS) is a smart upgrade for your Subaru. Developed through years of meticul...

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 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 ...

DESCRIPTION The GrimmSpeed Ceramic Coated 2 Bolt Up-Pipe has been designed to be a high-performance direct replacement for your factory up-pipe to ...

DESCRIPTION GrimmSpeed believes that there has not been any major changes to the unequal exhaust manifold in some time, and this is due to the tigh...

This kit is designed to provide a way to data log and monitor the ethanol content of fuel on most new Subaru Vehicles. Our proprietary controller r...

Formulated for long-lasting corrosion and rust protection for all cooling system components, this prediluted antifreeze/engine coolant prevents the...

PLM Private Label Mfg. Power Driven Subaru EWG Up-Pipe with Dump Tube 38mm features a unique designed up pipe which gives you the option to install...

DESCRIPTION If you’re going flex fuel, turning up boost, or upgrading to a turbo that actually needs fuel, the Injector Dynamics ID1050-XDS Top Fee...

DESCRIPTION The Injector Dynamics ID1300-XDS fuel injectors are a high-performance, top-feed injector set built for serious Subaru builds running h...

DESCRIPTION The Grimmspeed Top Mount Intercooler Y-Pipe Kit has been designed to work with factory or aftermarket top mount intercoolers. This is a...

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

PLM Power Driven Subaru 44mm EWG Up-Pipe with Dump Tube features a unique designed Up-pipe which gives you the option to install a 44mm or 45mm ext...

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...

DESCRIPTION Here, you are looking at the GrimmSpeed Lightweight Battery Tiedown. This is a great way to improve the looks and aesthetics of your en...

NGK single iridium plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consis...

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 ...

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...

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...

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...

The COBB Redline Carbon Fiber Fuse Cover for the 2008-2021 Subaru WRX/STI is constructed of solid carbon fiber featuring a 2x2 twill weave p...

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...

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 ...