2002-2007 WRX/STI
GrimmSpeed Red V2 Bypass Valve 2002-2007 WRX / 2004-2021 STI
5.0 / 5.0
6 Reviews
DESCRIPTION The GrimmSpeed V2 Bypass Valve received many upgrades such as a redesigned the internal piston to eliminate the potential failure point...
View full detailsGrimmSpeed 2 Bolt Ceramic Coated Up-Pipe 2002-2014 WRX / 2004-2021 STI
EMISSIONS SEMA Certified - SC -GRM01-0145 for listed fitments CARB Certified - EO - #D-896 for listed fitments DESCRIPTION The GrimmSpeed Ceramic ...
View full detailsGrimmSpeed Stock Downpipe to Aftermarket 3" Catback Adapter 2002-2026 WRX/ 2004-2021 STI
DESCRIPTION The Grimmspeed OEM Downpipe To 3-Inch Cat-Back Adapter is very popular for those of you who are retaining the stock downpipe and need t...
View full detailsGrimmSpeed Unequal Length Header 2002-2014 WRX/ 2004-2021 STI
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...
View full detailsGrimmSpeed Red Lightweight Battery Tiedown 2002-2026 WRX / 2004-2021 STI
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...
View full detailsGrimmSpeed Black Top Mount Intercooler Aluminum Y-Pipe Kit 2002-2007 WRX / 2004-2021 STI
DESCRIPTION The Grimmspeed Top Mount Intercooler Y-Pipe Kit has been designed to work with factory or aftermarket top mount intercoolers. This is a...
View full detailsGrimmspeed Black Classic Shift Knob 2002-2026 WRX / 2004-2021 STI
5.0 / 5.0
1 Review
DESCRIPTION The standard GrimmSpeed Shift Knob is one of the most popular in the Subaru aftermarket for a reason. They are the perfect mixture of r...
View full detailsGrimmSpeed Turbo to Downpipe Gasket 2002-2014 WRX / 2004-2021 STI
DESCRIPTION The GrimmSpeed Turbo To Downpipe Gasket is made using a premium multi-layer steel with a stainless steel fire-ring, this gasket surpass...
View full detailsGrimmSpeed Overtake BB500 Turbocharger Kit 2002-2014 WRX / 2004-2021 STI
DESCRIPTION GrimmSpeed's new Overtake BB500 Turbocharger is another powerful turbocharger designed by GrimmSpeed. The Overtake Ball-Bearing 500-Ser...
View full detailsGrimmSpeed Exhaust Gasket Set 2002-2014 WRX/ 2004-2021 STI
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...
View full detailsGrimmspeed Red Tallboy Shift Knob 2002+ WRX / 2004-2021 STI
5.0 / 5.0
1 Review
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...
View full detailsGrimmSpeed Top Mount Intercooler Kit 2002-2007 WRX / 2004-2021 STI
DESCRIPTION This is the GrimmSpeed Top Mount Intercooler. Once you start performing modifications that add more horsepower and more boost, eventual...
View full detailsGrimmSpeed 2 Bolt Up-Pipe 2002-2014 WRX / 2004-2021 STI
EMISSIONS SEMA Certified - SC -GRM01-0145 for listed fitments CARB Certified - EO - #D-896 for listed fitments DESCRIPTION We designed this up pip...
View full detailsGrimmSpeed Hella Horns BroTie Mounting Bracket 2002-2021 WRX / 2004-2021 STI
DESCRIPTION Have you ever thought to yourself, "Man, Trent, you've got all of these awesome parts but how are you supposed to let your crew know yo...
View full detailsGrimmSpeed Donut Gasket 2002-2014 WRX / 2004-2021 STI
DESCRIPTION This is the GrimmSpeed Downpipe Donut Gasket. This gasket is available as a direct replacement for your leaking OEM donut gasket and fe...
View full detailsGrimmSpeed Black Lightweight Battery Tiedown 2002+ WRX / 2004-2021 STI
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...
View full detailsGrimmSpeed Exhaust Manifold to Head Gasket (Pair) 2002-2026 WRX / 2004-2021 STI
DESCRIPTION These are the Grimmspeed Head to Exhaust Manifold Dual Port Gaskets. These particular gaskets see some of the highest temperatures when...
View full detailsGrimmSpeed Titanium 1.3 Bar Radiator Cap
DESCRIPTION Upgrade your cooling system with the GrimmSpeed Titanium Radiator Cap, rated at 1.3 bar for improved thermal control and reliability. B...
View full detailsGrimmSpeed Intercooler BPV/BOV Gasket 2002-2007 WRX / 2004-2021 STI
5.0 / 5.0
1 Review
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 ...
View full detailsGrimmSpeed Downpipe to Catback 3" Gasket 2002-2026 WRX / 2004-2021 STI
DESCRIPTION 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" ...
View full detailsGrimmSpeed Up Pipe to Turbo Gasket 2002-2014 WRX / 2004-2021 STI
DESCRIPTION The GrimmSpeed OEM Style Gasket offers superior sealing performance with upgraded materials and construction. While most exhaust gasket...
View full detailsGrimmSpeed Street Pitch Stop Mount 2002+ WRX / 2004-2021 STI
DESCRIPTION This is the GrimmSpeed Pitch Stop Mount. This pitch stop mount is a dramatic improvement over the factory mount which is made from flex...
View full detailsGrimmSpeed Race Pitch Stop Mount 2002-2026 WRX / 2004-2021 STI
DESCRIPTION The GrimmSpeed Race Version Pitch Stop Mount And Bushing Kit is a pivotal component in the engine/drivetrain support department especia...
View full detailsGrimmSpeed Up-Pipe Hardware Kit 2002-2014 WRX / 2004-2021 STI
DESCRIPTION Replace your missing or damaged up-pipe hardware with the same high-quality kit included in all GrimmSpeed Up-Pipes. Designed for durab...
View full detailsGrimmspeed Lightweight Delrin Classic Shift Knob 2002+ WRX / 2004-2021 STI
DESCRIPTION The GrimmSpeed Delrin Classic Shift Knob is a great way to add modern looks and styling to the interior of your vehicle while providing...
View full detailsGrimmspeed Lightweight Delrin Tallboy Shift Knob 2002+ WRX / 2004-2021 STI
DESCRIPTION The GrimmSpeed Lightweight Delrin Tallboy Shift Knob is a great way to add modern looks and styling to the interior of your vehicle whi...
View full detailsGrimmspeed Red Stubby Shift Knob 2002+ WRX / 2004-2021 STI
DESCRIPTION The GrimmSpeed Red Stubby Shift Knob is a great way to add modern looks and styling to the interior of your vehicle while providing the...
View full detailsGrimmSpeed Street Transmission Mount 2002+ WRX / 2004-2021 STI
The ALL NEW GrimmSpeed Transmission Mounts are designed to lock down your Subaru's drivetrain and enhance the driving experience, while keeping cab...
View full detailsGrimmspeed Black Stubby Shift Knob 2002-2026 WRX / 2004-2021 STI
5.0 / 5.0
1 Review
DESCRIPTION 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 ...
View full detailsGrimmspeed Black Tallboy Shift Knob 2002+ WRX / 2004-2021 STI
DESCRIPTION The GrimmSpeed Black Tallboy Shift Knobs are for car enthusiasts that prefer a shift knob that's on the tall and skinny side, based off...
View full detailsGrimmSpeed Short Throw Shifter 2004–2021 STI
DESCRIPTION Transform your 2004–2021 STI with the GrimmSpeed Short Throw Shifter, designed to deliver sharper shifts, tighter engagement, and preci...
View full detailsGrimmSpeed Downpipe to Catback 3" Gasket 2x Thick 2002-2026 WRX / 2004-2021 STI
DESCRIPTION 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" ...
View full detailsGrimmSpeed Hella Horn Wiring Harness 2002-2014 WRX / 2004-2014 STI
DESCRIPTION The GrimmSpeed Hella Horn Wiring Harness is a simple, clean solution for wiring Hella horns on the 2008-2014 Subaru WRX and 2004-2014 S...
View full detailsGrimmSpeed 6-Speed Shifter Bushing Kit 2004-2021 STI
The GrimmSpeed 6-Speed STI Shifter Bushing Kit replaces the factory rubber shifter bushings with higher durability polyurethane components designed...
View full detailsGrimmSpeed Exhaust Manifold to Up Pipe Gasket 2002-2021 WRX / 2004-2021 STI
DESCRIPTION GrimmSpeed™ OEM Style Gasket, better than OEM quality at an attractive price.At GrimmSpeed™ we have worked with endless amounts of afte...
View full detailsGrimmspeed Raw Stainless Steel Classic Shift Knob 2002+ WRX / 2004-2021 STI
DESCRIPTION The GrimmSpeed Raw Stainless Steel Classic Shift Knob is a great way to add looks and styling to the interior of your vehicle while pro...
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