Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the BRAND NEW GrimmSpeed Fender Shrouds for the 2015-21 WRX/STI (sold as a pair).
Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover?
At GrimmSpeed, we pride ourselves in the design of our aesthetic pieces just as much as our performance parts.
Perfect size and weight for the perfect shift, every time. The standard GrimmSpeed Shift Knob is one of the most popular in the Subaru aftermarket for a reason. They are the...
Perfect size and weight for the perfect shift, every time. The GrimmSpeed Stubby Knobs are for car enthusiasts that prefer a shift knob that's on the short and fat side, based...
With so many catback exhaust options available, our goal was to create a unique, refined sound in an extremely high-quality hand-welded system. We've been affectionately...
With so many catback options available, our goal was to create a unique, refined sound in an extremely high quality system. We've been casually referring to it as the...
The GrimmSpeed Turbocharger Program started by recognizing a need in the market for a robust, quick-spooling and high-performing turbo. Design began from the ground up and took...
These are one of the best ways to represent your favorite U.S. Aftermarket Parts Manufacturer.
These are one of the best ways to represent your favorite U.S. Aftermarket Parts Manufacturer.
Do you know what your intake manifold sits on?...a superheated engine. If you don t know already, the cooler your intake air is the more HP your car will achieve. We present you...
Do you know what your intake manifold sits on?...a superheated boxer engine. If you don t know already, the cooler your intake air is the more HP your car will achieve.
In response to the demand to extend our Phenolic Spacer lineup to include some of the older subaru models, we now have created intake manifold thermal spacers for 1993-1999...
In response to the demand to extend our Phenolic Spacer lineup to include some of the older subaru models, we now have created intake manifold thermal spacers for Impreza 1998...
In response to the demand to extend our Phenolic Spacer lineup to include some of the older subaru models, we now have created intake manifold thermal spacers for 99+ 2.5 N/A...
Do you know what your intake manifold sits on?...a superheated boxer engine. If you don t know already, the cooler your intake air is the more HP your car will achieve. We...
Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more HP your car will achieve. We present you...
Ushering in the NEW solution for you (PSM) Platinum Silver Metallic Subaru owners. We came up with a perfect paint match to (PSM) in a convenient can! So you can piant match...
Part of GrimmSpeed's job is identifying OE Subaru parts that could be improved upon and creating the best aftermarket versions of them. The pieces that make up your factory...
Part of GrimmSpeed's job is identifying OE Subaru parts that could be improved upon and creating the best aftermarket versions of them. The pieces that make up your factory...
GrimmSpeed Pulley Adapter Gates Stretch Belt Kit Subaru.
Booya! Add a bit of style and function to your engine bay with this simple but elegant and first of it's kind pulley cover, featuring the world famous GrimmSpeed tool tray.
Booya! Add a bit of style and function to your engine bay with this simple but elegant and first of it's kind pulley cover, featuring the world famous GrimmSpeed tool tray. This...
Finally an answer to all of the World Rally Blue owners out there. We came up with a perfect paint match to World Rally Blue (WRB) in a convenient spray-can! Now you can paint...