2015-2021 Subaru STI Cooling

Formulated for long-lasting corrosion and rust protection for all cooling system components, this prediluted antifreeze/engine coolant prevents the...

DESCRIPTION The Grimmspeed Top Mount Intercooler Y-Pipe Kit has been designed to work with factory or aftermarket top mount intercoolers. This is a...

The bar has been raised. So, you probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it comes...

Tired of heat soak? We don't blame you!   It's time to upgrade to an intercooler that is designed specifically for the 2015+ WRX with performance i...

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

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 Replace your old, dried out factory radiator hoses with the COBB Tuning Silicone Radiator Hoses. Constructed of 3-ply reinforced sil...

Description The OEM Coolant Overflow Tank for the 2015+ WRX/STI does its job well enough but the cheap plastic material is ugly and will potent...

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 ...

Best TMIC on the market! Extreme Turbo Systems has designed a direct bolt on top mount intercooler for the 08-21 Subaru STI. This intercooler featu...

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...

DESCRIPTION To help keep chassis deflection at bay and to keep any large dents out of your front fascia we’re offering the GrimmSpeed Bumper Bar as...

DESCRIPTION This is the Grimmspeed Splitter that is available for separate purchase. This particular splitter comes with the Grimmspeed Top Mount I...

This is handmade here in the USA at Extreme Turbo Systems. This will bolt up with a 3.0"-4.0" ETS intercooler and requires no additional trimming o...

DESCRIPTION Torque Solution Cylinder 4 Coolant Mod for Subaru EJ Engines was designed to increase coolant flow to cylinder #4 head area. The additi...

Overtake Subaru Radiator Hose Kit | Stronger Than OEM Ensure your Subaru's cooling system is built to last with the Overtake Silicone Radiator Hose...

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 ...

This piping kit is the best on the market for relocating the factory Subaru intercooler. The factory intercooler location allows for excessive heat...

This piping kit is the best on the market for relocating the factory Subaru intercooler. The factory intercooler location allows for excessive heat...

A Refresh with Perfect Fitment | Overtake Top Mount Intercooler Y-Pipe Kit Just picked up an aftermarket or STI Subaru TMIC that needs an STI Y-Pip...

DESCRIPTION The Grimmspeed Top Mount Intercooler Y-Pipe Kit has been designed to work with factory or aftermarket top mount intercoolers. This is a...