Perrin Oil Cooler Kit 2002-2014 WRX / 2004-2021 STI

Each Perrin oil cooler uses a Perrin core which maximizes heat dissipation without pressure build-up. This bar and plate design is much stronger than the old style, resulting in a much more durable and efficient core.The PERRIN Performance filter adapter features an integrated 85C (185F) thermostat. This means oil will not start flowing through the oil cooler until oil temps reach an optimum temperature of 85C. In addition to the OEM oil filter from Subaru, we include a PERRIN spacer which allows for easier installation of the thermostat-filter assembly and increased clearance for the hoses over the headers. PERRIN’s STI/WRX oil cooler kit uses light weight Aeroquip brand -10 hose that is rated for 250psi and 300F continuous temperature. Each hose consists of anodized -10 push-lock type aluminum hose ends. These fittings are designed to fit without the need for clamps, but we take the extra step and add a clamp ensuring they will never come apart. Unlike other kits that make you assemble your hoses, PERRIN preassembles them for you!Please Note 2002-2005 WRX and 2004-2007 STI owners must use the coolant crossover pipe found on 2008+ STI models to ensure proper fitment, the OEM Subaru part number is21328AA140