Engine Mods

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with th...

Here, you are looking at the Injector Dynamics Fuel Injector PnP Adapter USCAR to Denso Adapter. This is available for separate purchase for those ...

Oil supply line and gasket set included! FP Blue™ Compressor wheel - 73HTZ Flow rating - 57LB per minute CW Measurements - 52.6MM Inducer / 73MM E...

Oil Supply Line and gasket set included! FP Green HTZ Compressor wheel - 76HTZ Flow rating - 61LB per minute CW Measurements - 54.8MM Inducer / 76...

EMISSIONS SEMA Certified - SC -GRM01-0145 for listed fitments CARB Certified - EO - #D-896 for listed fitments A top of the line Up-Pipe built to ...

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with th...

Ditch the dainty OEM plastic charge pipe for the all new ETS Stainless Steel Charge Pipe for the 2022+ Subaru WRX! The OEM Charge Pipe is reduced a...

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with th...

Description Our Subaru Battery Tie Down is professionally designed in CAD and machined from quality billet aluminum. A black anodized finish an...

Description The COBB Redline Carbon Fiber Fuse Cover for the 2008-2021 Subaru WRX/STI is constructed of solid carbon fiber featuring a 2x2...

Description This replacement hardware kit for the 2015-2021 WRX intake (Part# 745110) contains the circular bracket along with the edge trim ne...

DESCRIPTION This kit is designed to help increase the cooling to the #4 cylinder on the Subaru EJ series engines. This hose kit connects to an exis...

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with th...

Description The COBB Subaru Pitch Stop Mount is constructed of CNC machined 6061-T6 aluminum and finished with black anodizing. The COBB logo i...

Description Tired of your Accessport OBDII cable getting in the way? Our new OBDII Universal Cable features a much lower profile OBD connector ...

Extreme Turbo Systems (ETS) has designed a perfect fitting direct bolt on top mount intercooler for your 22+ Subaru WRX.  The ETS 2022+ WRX Top Mou...

DESCRIPTION These are the Grimmspeed Head to Exhaust Manifold Dual Port Gaskets. These particular gaskets see some of the highest temperatures when...

PROTECT YOUR ENGINE The IAG Air / Oil Separator (AOS) is a smart investment to safeguard and improve your Subaru's performance. Developed ...

DESCRIPTION The GrimmSpeed Pulley Cover is a great way to improve the aesthetics of your engine bay by replacing the simple OEM cover that is plast...

Our intake system utilizes a stock size MAF housing that doesn't require any retuning. You can bolt this on and notice immediate performance gains!...

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 ...

EMISSIONS CARB Certified - EO - #D-896-4 & #D-896-2 for listed fitments Meticulous Engineering, Unparalleled Craftsmanship Replace that unders...

Overtake Top Mount Intercooler Isolator Bushings | A splash of Overtake bling for your engine bay! Most aftermarket top mount intercoolers for Suba...

Description The filter element that originally came with your SF Intake is cleanable and can be reused for the life of your car. However, shoul...

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with th...

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...

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics ...

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit from GrimmSpeed has been designed with a great balance of low-pressure drop and high-tempera...