Perrin Oil Cooler Kit (Full Kit with Oil Lines) - 15-21 Subaru WRX - PSP-OIL-111 2.125" Turbosmart’s WG38/40/45 HP 30 PSI

Turbosmart’s WG38/40/45 HP 30 PSI Outer Spring Brown/Red is a must-have for external wastegate setups

Fitting: B series Hydro Transmissions with the Large diameter ring gear hole (116

The plastic end tanks of the stock radiator are especially prone to cracking from years of constant variation in temperature

each set includes two cotter pins

Perrin Oil Cooler Kit (Full Kit with Oil Lines) - 15-21 Subaru WRX - PSP-OIL-111 2.125" Turbosmart’s WG38/40/45 HP 30 PSIReduce engine oil temperatures, extend engine life, and keep your horsepower consistent with a PERRIN Oil Cooler. Perrin 15 21 Subaru WRX Oil Cooler Kit w PERRIN Core Subaru WRX 2015+, 2015: Subaru: WRX: Base, 2015: Subaru: WRX: Limited, 2015: Subaru: WRX: Premium, 2016: Subaru: WRX: Base, 2016: Subaru: WRX: Limited, 2016: Subaru: WRX: Premium, 2017: Subaru: WRX: Base, 2017: Subaru: WRX: Limited, 2017: Subaru: WRX: Premium, 2018: Subaru: WRX: Base,