2015-2021 Subaru STI

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...

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...

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...