Mods on Sale

DESCRIPTION It’s inevitable, you’ll eventually want to replace your OEM Subaru oil cap. Whether it's leaking, worn out, or just an eyesore, the Gri...

DESCRIPTION The GrimmSpeed V2 Bypass Valve received many upgrades such as a redesigned the internal piston to eliminate the potential failure point...

DESCRIPTION The GrimmSpeed Titanium Radiator Shroud for the 2015–2021 WRX and STI transforms one of the most visible areas of the engine bay into a...

DESCRIPTION GrimmSpeed's Pulley Cover is designed to complement the GrimmSpeed Billet Top Mount Intercooler. This cover not only enhances aesthetic...

DESCRIPTION Upgrade your 2015–2021 Subaru WRX or STI engine bay with GrimmSpeed Titanium Fender Shrouds. These precision-crafted titanium panels re...

DESCRIPTION Upgrade your 2022+ Subaru WRX engine bay with the GrimmSpeed Titanium Radiator Shroud. Built on the proven design of GrimmSpeed’s long-...

DESCRIPTION This top-of-the-line intercooler boasts a range of innovative features, including a CNC milled billet aluminum construction and a sleek...

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit for the 2008–2014 STI is engineered to deliver maximum cooling efficiency with minimal press...

DESCRIPTION It’s inevitable, you’ll eventually want to replace your OEM Subaru oil cap. Whether it's leaking, worn out, or just an eyesore, the Gri...

DESCRIPTION Upgrade your 2022+ Subaru WRX engine bay with the GrimmSpeed Titanium Pulley Cover. Based on the proven design of GrimmSpeed’s long-sta...

DESCRIPTION The GrimmSpeed Charge Pipe Kit for the 2022+ WRX is a direct replacement for the factory Subaru piping. This kit was crafted from durab...

DESCRIPTION Upgrade your 2022+ Subaru WRX with the GrimmSpeed Engine Mount Kit, designed to replace the factory soft rubber mounts with a performan...

DESCRIPTION The GrimmSpeed Front Strut Bar for the 2022+ Subaru WRX delivers a precise blend of structural rigidity and clean design. Built with fo...

DESCRIPTION Feature-packed, these gaskets are a perfect fit for any engine build, from basic refresh to a high horsepower track monster. The GrimmS...

DESCRIPTION The GrimmSpeed Head Gaskets feature a multi-layer steel (MLS) construction, in which multiple grades are used to provide optimal surfac...

DESCRIPTION Engineered for real-world performance and durability, the GrimmSpeed Front Strut Bar adds critical front-end rigidity to your 2008–2014...

DESCRIPTION The GrimmSpeed Stage 1 Power Package combines GrimmSpeed's Cold Air Intake System, as well as the GrimmSpeed 3-Port Electronic Boost Co...

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit for the 2008–2014 WRX is engineered to deliver exceptional cooling efficiency without sacrif...

DESCRIPTION Elevate the style of your Subaru’s engine bay with GrimmSpeed Titanium Fender Shrouds, designed for enthusiasts who want both function ...

DESCRIPTION We decided on a subtle design for this cover that mimics the “vent” styling on our matching GrimmSpeed Alternator Cover. Is it made fro...

DESCRIPTION The GrimmSpeed Charge Pipe Kit for the 2022+ WRX is a direct replacement for the factory Subaru piping. This kit was crafted from durab...

DESCRIPTION Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the brand new GrimmSpeed Fender Shrouds....

DESCRIPTION The GrimmSpeed Lightweight Crank Pulley reduces the rotational mass of the system, allowing your engine to accelerate and decelerate th...

DESCRIPTION This is the GrimmSpeed Radiator Hose Kit. These radiator hoses feature multi-layer silicone construction that is built to last while im...

DESCRIPTION The GrimmSpeed Stage 1 Power Package combines GrimmSpeed's Cold Air Intake System, as well as the GrimmSpeed 3-Port Electronic Boost Co...

The CNC Billet Aluminum EJ case seeks to change the Subaru performance tuning market by reinventing the EJ and addressing virtually every weakness ...

THE IAG SPEC FA24 HIGH- PRESSURE FUEL PUMP BY NOSTRUM IAG Performance and Nostrum have teamed up to deliver the IAG Spec FA24 High-Pressur...

IAG 600 BOLT-ON WRX TURBO If you’re looking for more power out of your 2022+ Subaru WRX equipped with the FA24F engine, the IAG 600 Ba...

THE IAG SPEC HIGH-FLOW DIRECT GDI FUEL INJECTOR SET BY NOSTRUM IAG Performance and Nostrum have joined forces to develop...

TRANSFORM YOUR ENGINE BAY Get rid of the dull yellow plastic under your Subaru’s hood and upgrade your engine bay with the IAG Revolve Engine...

TRANSFORM YOUR ENGINE BAY Get rid of the dull yellow plastic under your Subaru’s hood and upgrade your engine bay with the IAG Revolve Engine...

TRANSFORM YOUR ENGINE BAY Get rid of the dull yellow plastic under your Subaru’s hood and upgrade your engine bay with the IAG Revolve Engine...

TRANSFORM YOUR ENGINE BAY Get rid of the dull yellow plastic under your Subaru’s hood and upgrade your engine bay with the IAG Revolve Engine...

TRANSFORM YOUR ENGINE BAY Get rid of the dull yellow plastic under your Subaru’s hood and upgrade your engine bay with the IAG Revolve Engine...

THE IAG SILICONE UPPER & LOWER RADIATOR HOSE KIT When it’s time to replace the factory radiator hoses on your 2015–2021 Subaru WRX, the I...

THE IAG SILICONE UPPER & LOWER RADIATOR HOSE KIT When it’s time to replace the factory radiator hoses on your 2015–2021 Subaru WRX, the I...