Products

If you've dealt with sourcing exhaust gaskets before, you know that there are a lot of different options at a lot of different price points. Unfort...

Rejoice APS Downpipe owners, you finally have a great replacement gasket for your APS Downpipe! We know that you have frequent blowouts so we have ...

Rejoice 3-Bolt Up Pipe owners, you finally have a great replacement gasket for your up pipes! We listened to your wants and made it happen.GrimmSpe...

Flared Adapter Transition!(Creates a smooth transition from your 3" downpipe to your OEM midpipe) Flanged for OEM Donut Gasket Indestructibl...

GrimmSpeed introduces the most complete and easy to use 3-Port Electronic Boost Solenoid available on the market. Our aftermarket boost controller ...

GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost Solenoid for available for all turbo Subarus. Unlike your ...

The Original Direct-Fit BCS for turbo Subarus. GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost Solenoid fo...

GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost Solenoid for available for all turbo Subarus. Unlike your ...

The 2015-2021 WRX offers a unique change of pace, as the factory 2-port solenoid is mounted directly to the plastic turbo inlet and interfaces with...

This intake filter is dimensionally identical to our oiled air filters that are included with the GrimmSpeed WRX/STI/BRZ/FRS/LGT intakes. This filt...

GrimmSpeed™ introduces their premium quality 38mm 2-Bolt Flange External Wastegate Gasket(EWG). This gasket is for use in any 38mm size EWG setup. ...

100% Thicker than OEM Gaskets!!2X Thick 3" 2-Bolt gasket is hands down the most beefy 3" 2-Bolt gasket on the market. 12 LAYERS!Tired of the endles...

Tired of the endless searching for a 3" 2 Bolt premium gasket that doesn't blow out? Most aftermarket Subaru exhaust systems need a 3" 2 bolt gaske...

A Heavy Duty Multi-Layer T3 Gasket with ALL Stainless Layers and Fire-Ring If you've dealt with sourcing turbo manifold gaskets before, you know th...

A Heavy Duty Multi-Layer T3 Gasket with ALL Stainless Layers and Fire-Ring If you've dealt with sourcing turbo manifold gaskets before, you know th...

A Heavy Duty Multi-Layer T4 Gasket with ALL Stainless Layers and Fire-Ring If you've dealt with sourcing turbo manifold gaskets before, you know th...

The GrimmSpeed Stubby Knobs are for car enthusiasts that prefer a shift knob that's on the short and fat side, based off the design of the original...

The GrimmSpeed Stubby Knobs are for car enthusiasts that prefer a shift knob that's on the short and fat side, based off the design of the original...

These shift knobs are designed to fit the 6 speed right out of the box. Each knob is machined from Delrin/Duracon, an extremely durable thermoplast...

These shift knobs are designed to fit the 6speed right out of the box. Each knob is machined from solid 304 stainless steel rod and weighs in at 67...

GrimmSpeed has a unique design which allows you to keep your PCV valve while separating the oil out of the crankcase and head ventilation air. None...

GrimmSpeed has a unique design which allows you to keep your PCV valve while separating the oil out of the crankcase and head ventilation air. None...

GrimmSpeed has a unique design which allows you to keep your PCV valve while separating the oil out of the crankcase and head ventilation air. None...

GrimmSpeed has a unique design which allows you to keep your PCV valve while separating the oil out of the crankcase and head ventilation air. None...