Perrin Lightweight Water Pump Pulley - Black - 15-21 WRX, 14-18 Forester - PSP-ENG-111BK 235 Series With an OEM K-Series thermostat

With an OEM K-Series thermostat (opens at 172

P2R injector adapters for using the newer R40 K24 stock fuel injectors from the 2012+ Civic Si into a RBC intake manifold with out modification

increase flow capacity

the polyester-reinforced silicone construction helps the hoses to handle up to 100F hotter temperatures than the stock EPDM rubber hoses

Perrin Lightweight Water Pump Pulley - Black - 15-21 WRX, 14-18 Forester - PSP-ENG-111BK 235 Series With an OEM K-Series thermostatThe PERRIN Water Pump Pulley lightens up your rotating engine parts to free up power. A weight savings that can be felt with every blip of the gas pedal! Perrin Lightweight Water Pump Pulley 15 21 WRX, 14 18 Forester 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: