2008-2014 STI

Engineered for durability and longevity, the GrimmSpeed OEM Downpipe to 3in Cat Back Adapter Subaru Turbo Models allows you to quickly and securel...

GrimmSpeed 08+ STi Boost Control Solenoid

License plates are a necessary evil on the front of our cars, but you can save your front bumper from looking boring or blocking flow to your FMIC ...

GrimmSpeed's 3in Downpipe to Stock Cat-Back Adapter for Turbo Models offers superior fitment for Subaru vehicles. This adapter is manufactured and ...

The original GrimmSpeed Fender Shrouds for the 15+ chassis were SUCH a big hit that Grimmspeed decided to introduce a unique set for 08-14 WRX and ...

GrimmSpeed 06-14 Subaru Impreza/WRX/STi License Plate Delete Plate

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

GrimmSpeed 02+ WRX/STi V2 Turbo Heat Shield - Black Ceramic Coating

GrimmSpeed 08-18 Subaru WRX/STI Lightweight Battery Tie Down - Red

Feature-packed, these gaskets are a perfect fit for any engine build, from basic refresh to a high horsepower track monster.    1.5mm thicknes...

Feature-packed, these gaskets are a perfect fit for any engine build, from basic refresh to a high horsepower track monster.  The GrimmSpeed He...

The GrimmSpeed Radiator Hose Kit feature multi-layer silicone construction that is built to last while improving the overall cooling efficiency of ...

These are the GrimmSpeed High Lift Hood Struts. These hood struts have been designed to provide the hood of your vehicle support while eliminating...

How many times have you lost a wrench or socket in your engine bay? Yeah, that's what I thought, too many to count. Finally, after all of these yea...

This is the GrimmSpeed Master Cylinder Brace. This master cylinder brace is the result of countless invested hours of research to solve a prevalen...