GrimmSpeed

Part Number: 112000.2 GrimmSpeed engine dress-up pieces have been extremely popular with Subaru owners over the years, but there’s always been one ...

Part Number: 112000.1 GrimmSpeed engine dress-up pieces have been extremely popular with Subaru owners over the years, but there’s always been one ...

Part Number: 090070 Replace that undersized, plastic stock intercooler with a GrimmSpeed Top Mount Intercooler Kit, featuring cast aluminum end tan...

Part Number: 090095 Special Fitment Note: Supported fitments include only those vehicles running OEM STI and GrimmSpeed Top Mount Intercoolers. The...

Part Number: 070045 With so many catback exhaust options available, our goal was to create a unique, refined sound in an extremely high-quality han...

Part Number: 053001 When you upgrade your Subaru to a Blow Through System you will need a way to block off the location where the old MAF Sensor wa...

Part Number: 096049 Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the BRAND NEW GrimmSpeed Fender ...

Part Number: 096048 Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the BRAND NEW GrimmSpeed Fender ...

Part Number: 090113 The GrimmSpeed Charge Pipe Kit replaces the restrictive stock plastic unit on the FA20-powered WRX with larger diameter CNC man...

Part Number: 060094 At GrimmSpeed we know that not everyone is ready for one of our full aftermarket intake systems, but still wants a safe and eas...

Part Number: 093128 These have both been a long time in the making and as the popularity of GrimmSpeed intercooler offerings has skyrocketed, we've...

Part Number: 120014Y Kick out your old oil cap and tell it to hit the streets, we have a sleeker, much more attractive version to shine up your eng...

Part Number: 120014C Kick out your old oil cap and tell it to hit the streets, we have a sleeker, much more attractive version to shine up your eng...

Part Number: 096039 At GrimmSpeed we pride ourselves in the design of our aesthetic pieces just as much as our performance parts. The brand new Gri...

Part Number: 060074 It’s no secret that GrimmSpeed intakes feature performance and aesthetics that lead the pack. With years of design theories and...

Part Number: 099040 Tired of being teased for your boring engine bay? Replace your stock TMIC with one that doesn't facilitate the use of the stock...

Part Number: 060077 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 of as a ...

Part Number: 090010 You probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it comes to selec...

Part Number: 001001 Subaru supplies its turbo owners with a tiny little crosspipe from the factory. 50% of your exhaust gasses are passing through ...

Part Number: 090024 So, you probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it comes to s...

Part Number: 090001 So, you probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it comes to s...

Part Number: 060052 Design requirements for this intake were simple: The intake must not only be safe for the engine, but perform well both with an...

Part Number: 060067 Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake system for the 2015+ W...

Part Number: 096006 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 aft...

Part Number: 405323 Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM coolant hoses. As you...

Part Number: 405326 Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM coolant hoses. As you...

Part Number: 070033 With so many catback options available, our goal was to create a unique, refined sound in an extremely high quality system. We'...

Part Number: 090096 Special Fitment Note: Supported fitments include only those vehicles running OEM STI and GrimmSpeed Top Mount Intercoolers. The...

Part Number: 126022.1 The long-awaited GrimmSpeed Bypass Valves are here! Our passion for building the most robust, best-performing parts on the ma...

Part Number: 126024.2 The long-awaited GrimmSpeed Bypass Valves are here! Our passion for building the most robust, best-performing parts on the ma...

Part Number: 126024.1 The long-awaited GrimmSpeed Bypass Valves are here! Our passion for building the most robust, best-performing parts on the ma...

Part Number: 125026 One of the biggest complaints we’ve heard from 2015-21 WRX owners has to do with cracks forming in their OEM plastic turbo inle...

Part Number: 125027 One of the biggest complaints we’ve heard from 2015-21 WRX owners has to do with cracks forming in their OEM plastic turbo inle...

Part Number: 125023.2 Our post MAF hose construction improves on OE with 2 main features: First is the smooth inner surface, removing the pockets f...

Part Number: 125023.1 Our post MAF hose construction improves on OE with 2 main features: First is the smooth inner surface, removing the pockets f...

Part Number: 125009 Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out ...