NGK 15-20 Subaru WRX / 14-18 Forester Direct Fit (B1S2) Oxygen Sensor 2016-subaru-impreza-esi8373683 The design of the mounting

The design of the mounting bracket serves as ducting to channel air to the cooler

Every GT-36 rotor is fully detail machined to eliminate stress points and unnecessary weight away from the pad sweep face

Our lightweight

AEM Tru-Time Adjustable Camshaft Gears increase horsepower and torque without having to change the camshaft(s) and are must-have items for engines that are milled

Colder intake charge temps mean your VR30 can make the most of every drop of fuel

NGK 15-20 Subaru WRX / 14-18 Forester Direct Fit (B1S2) Oxygen Sensor 2016-subaru-impreza-esi8373683 The design of the mountingNTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic