Injen's Evolution air intake system for the 2015+ Subaru WRX STI features a super-nano web dry filter and massive horsepower and torque gains. During testing at Injen, this intake resulted in a +26 hp and +35.5 ft/lbs of torque gain. The enclosed airbox design offers a clean look and superior heat protection compared to traditional open element systems.
The Injen Evolution intake replaces the factory airbox and intake tube and also includes a custom air scoop. The existing MAF sensor and hoses connect to it to ensure a proper fit with no check engine lights.
Check out the very nice install Video here. Note that we recommend custom ECU tuning with the installation of any intake on the STI, and this intake is no exception.
Fits all 2015-2017 Subaru WRX STI. Does NOT fit 2018+ WRX STI.
Shipping Weight: 20.0 lb
Category: Intake Systems