GrimmSpeed Shift Knob Boot Retainer - Multiple Subaru Applications (5 Speed)
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The GrimmSpeed shift boot retainer will hold your shift boot in place around the base of the shift knob. This is meant for Subaru...
GrimmSpeed Stage 1 Power Package - Subaru Legacy GT 2005-2009
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The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together, as...
GrimmSpeed Stage 1 Power Package - Subaru STi 2008-2014
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The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together, as...
Grimmspeed Stage 1 Power Package - Subaru STi 2015-2021
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The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together, as...
GrimmSpeed Stage 1 Power Package - Subaru WRX 2008-2014
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The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together, as...
GrimmSpeed Stage 1 Power Package - Subaru WRX 2015-2020
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The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together, as...
GrimmSpeed StealthBox Cold Air Intake - Subaru WRX 2015-2020
060060
Air Induction
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Inspiration for the StealthBox Intake came from internal discussions about what GS wanted from an intake system for the 2015+ WRX. Of course performance...
GrimmSpeed StealthBox Cold Air Intake - Subaru WRX STi 2015-2020
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Air Induction
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You've been asking for this bad sally for a while and it's finally here. The intake the for the 15+ STI can be thought...
GrimmSpeed Strut Tower Brace - Subaru BRZ 2013-2020 / Scion FR-S 2013-2016
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Chassis Bracing
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Strut Bars / Braces
Suspension Linkage
You’ve probably read somewhere on the internet that a strut tower brace never does anything but look pretty. You’re about to read otherwise. Armed...
GrimmSpeed Subaru 3" Downpipe to OEM Catback Adapter - Multiple Subaru Models
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Exhausts
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Exhaust leaks seem to be an all-too-common issue with most modified Subarus. They tend to spring up out of nowhere and cause hours of...
GrimmSpeed Subaru Exhaust Manifold to Crossover 2X Thick Gasket (Pair) - Multiple Subaru Fitments
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This is the Grimmspeed Header Collectors to Crossover Gaskets. Anytime that you perform maintenance that requires removal or maintenance of these particular components, you...
GrimmSpeed Subaru OEM Downpipe to 3" Catback Adapter - Multiple Subaru Fitments
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Exhausts
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Exhaust leaks seem to be an all-too-common issue with most modified Subarus. They tend to spring up out of nowhere and cause hours of...
GrimmSpeed Subaru Throttle Body Drive By Cable Gasket
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GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem...
GrimmSpeed Subaru Throttle Body Drive By Wire Gasket
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GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem...
GrimmSpeed T3 Divided Turbo Gasket - Universal
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GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem...
GrimmSpeed T3 Turbo Gasket - Universal
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GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem...
GrimmSpeed T4 Divided Turbo Gasket - Universal
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GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem...
GrimmSpeed T4 Turbo Gasket - Universal
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Exhausts
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GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem...
GrimmSpeed TGV to Engine Gasket (Pair) 02+ WRX/STI/FXT/LGT
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Not much to say here. Just a set of GrimmSpeed™ TGV to engine gaskets. get them while they are hot. ApplicationsWRX 02-14STi 04+Legacy GT 05-09Forester...
GrimmSpeed Throttle Body Gasket - Mitsubishi Evolution 8/9 2003-2006
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GrimmSpeed EVO 8/9 Throttle Body GasketNow supporting the Evo community with the same top quality gaskets we have been offering Subaru owners for years! Introducing...
GrimmSpeed TMIC Splitter - Subaru Forester XT 2004-2008 (fits GS and 2004-2007 STI TMIC)
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Cooling
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Intercooler Accessories & Hoses
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OEM Splitter choking your TMIC? We can fix that. These have both been a long time in the making and as the popularity of...
GrimmSpeed TMIC Splitter - Subaru STi 2008-2014 (fits GS TMIC)
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Intercooler Accessories & Hoses
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This is the Grimmspeed Top Mount Intercooler Hood Scoop Splitter. The main intention of this component is to provide better air surface coverage to...
GrimmSpeed TMIC Splitter- Subaru WRX / STi 2002-2007 / Saab 9-2x Aero 2004-2005
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Intercooler Accessories & Hoses
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This is the Grimmspeed Top Mount Intercooler Hood Scoop Splitter. The main intention of this component is to provide better air surface coverage to...
GrimmSpeed Top Mount Intercooler - Subaru WRX 2002-2007 / STI 2004-2021 / Forester XT 2004-2008 (Thermal Dispersant Black)
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This is the Grimmspeed top mount intercooler that has been designed to provide maximum cooling efficiency with minimal restriction. Grimmspeed understands that because the...
GrimmSpeed Top Mount Intercooler - Subaru WRX 2002-2007 / STI 2004-2021 / Forester XT 2004-2008
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When it comes to selecting the right intercooler with maximum cooling and minimum restriction, then check out this GrimmSpeed unit. As air is pressurized...
GrimmSpeed Top Mount Intercooler Aluminum Y-Pipe Kit - Subaru WRX 2002-2007 / STi 2004-2021 / Forester XT 2004-2008
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Just bought an aftermarket or STI TMIC that requires an STI Y-Pipe to fit? Want to replace your chewed up and leaking couplers? Maybe...
GrimmSpeed Top Mount Intercooler Blow-Off Valve Gasket - Subaru WRX 2002-2007 / STi 2004-2021
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Flanges & V-Band
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The OEM Subaru Top Mount Intercooler Gaskets are pretty weak, and will eventually give out. But fear not, GrimmSpeed has answered your call. Their...
GrimmSpeed Top Mount Intercooler Kit w/ Splitter - Subaru Legacy GT 2005-2009
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So, you probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it comes to selecting the right...
GrimmSpeed Top Mount Intercooler Kit w/ Splitter - Subaru WRX 2008-2014
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This is the Grimmspeed top mount intercooler that has been designed to provide maximum cooling efficiency with minimal restriction. Grimmspeed understands that because the...
GrimmSpeed Top Mount Intercooler Kit w/ Splitter - Subaru WRX 2015-2021
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Replace that undersized, plastic stock intercooler with a GrimmSpeed Top Mount Intercooler Kit, featuring cast aluminum end tanks, large bar and plate core and...
