2015-2021 Subaru STI Engine

DESCRIPTION The MSP Front Brace Bar is engineered to provide a bold, aggressive look and increased chassis rigidity for your 2015-2021 WRX/STI. It ...

DESCRIPTION Add a little style to your hood struts by swapping them for these OLM Carbon Fiber Hood Struts. This piece offers the same OE style and...

This kit is designed to provide a way to data log and monitor the ethanol content of fuel on most new Subaru Vehicles. Our proprietary controller r...

PLM Private Label Mfg. Power Driven Subaru EWG Up-Pipe with Dump Tube 38mm features a unique designed up pipe which gives you the option to install...

The IAG Performance V3 Street Series Air / Oil separator (AOS) is an excellent investment to keep your Subaru vehicle running well. The Street Seri...

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

The Hyper V-Core Series is the newest to the Koyorad | Koyo All Aluminum Racing Radiator line up. An engine's cooling system in many newer vehicles...

The flow of air is not only limited to the outside of a car. To maximize cooling capabilities, a radiator needs a direct flow of air to allow an en...

COMPLETE THE LOOK Matching Perrin's signature pulley cover design, the angled cutouts look great while concealing the factory fender gap.  DESIGN P...

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 ...

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

The PERRIN Master Cylinder Brace prevents unwanted movement of the master cylinder, allowing for increased brake pedal stiffness and response. REDU...

Dress up your engine bay while preventing leaks and spills from your master cylinder reservoir with the PERRIN Brake Reservoir Cozy.  Easy Installa...

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

This is the factory spark plug as installed in the 2018 Subaru WRX STI Type RA and 2019 Subaru WRX STI. The main differences are a heat range tha...

DESCRIPTION Setting the standard for MAF style intakes with a velocity stack, airflow straighteners and composite body for ultimate performa...

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

This kit is designed to be the best AOS on the market. It is a triple pass system with carefully designed diameters and cross sect...

Performance During cornering, the Perrin Strut Tower Brace improves chassis rigidity, enhances steering precision under high load conditions, and r...

This Radium Engineering master cylinder brace is compatible with the left hand drive (LHD) 15-21 Subaru WRX, 15-21 Subaru WRX STi, and 14-18 Forest...

6A1 540 A * Type 1 Aluminum Oval shape * Steel Blue Bracket Light weight aluminum oval shaft, strong & durable.

PLM Power Driven Subaru 44mm EWG Up-Pipe with Dump Tube features a unique designed Up-pipe which gives you the option to install a 44mm or 45mm ext...

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 ...

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

EMISSIONS This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION Tired of your A...