GrimmSpeed has set the standard not only for creating high quality performance upgrades, but also aesthetic parts. Now we’re proud to introduce THE go-to fender...
Red Stealthbox Air Intake Kit (060067) by GrimmSpeed. Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake...
Black Stealthbox Air Intake Kit (060060) by GrimmSpeed. Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake...
Blow-Off and Diverter ValvesForced InductionGrimmSpeed
The days of sacrificing performance to leaky BPVs are over, because the long-awaited GrimmSpeed Bypass Valves are here! The long-awaited return of the GrimmSpeed...
Blow-Off and Diverter ValvesForced InductionGrimmSpeed
The days of sacrificing performance to leaky BPVs are over, because the long-awaited GrimmSpeed Bypass Valves are here! The long-awaited return of the GrimmSpeed...
The GrimmSpeed Charge Pipe Kit replaces the restrictive stock plastic unit on the FA20-powered WRX with larger diameter CNC mandrel bent aluminum tubing and...
GrimmSpeed Intercoolers have set the gold standard of how a high performance heat exchanger should be crafted. Our intercoolers have always maintained the delicate...
Constructed using a 5-ply process and high quality silcione material, this coupler will enable you to utilize a stock location, sti or aftermarket turbo...
There are two primary considerations in the design of an intercooler: maximum heat transfer and minimum pressure drop. Unfortunately, one causes the other, so...
Clamps, Hangers and Misc Exhaust ComponentsExhaustGrimmSpeed
Downpipe to Catback Adapter (077046) by GrimmSpeed. Main Piping Diameter: 3". Exhaust leaks seem to be an all-too-common issue with most modded Subarus. They...
Its no secret that GrimmSpeed intakes feature performance and aesthetics that lead the pack. With years of design theories and knowledge gained from our...
Top Mount Intercooler Y-Pipe Gasket (020024) by GrimmSpeed. 1 Pair. GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we...
Top Mount Intercooler Blow-Off Valve Gasket (020023) by GrimmSpeed. 1 Piece. GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed...