aFe Pro Dry S Drop-In Air Filter Subaru WRX / STI 2008-2021 | 31-10161 Vehicle Model_XV Crosstrek but GrimmSpeed is one of

but GrimmSpeed is one of the first to offer this technology to the Subaru world

LM-2 Wideband Systems

ACT pressure plates have precision cover stampings to provide rigidity and consistency

Hole #1 50% Stiffer than 20mm OEM Bar

any REAL racer

aFe Pro Dry S Drop-In Air Filter Subaru WRX / STI 2008-2021 | 31-10161 Vehicle Model_XV Crosstrek but GrimmSpeed is one ofPart #: 31 10161 The aFe high flow, oil free OE replacement drop in performance filter will out flow Subaru's stock paper filter which results in improved horsepower and torque for your EJ25 powered WRX. The Pro Dry S is composed of two layers of progressively finer mesh synthetic media provide convenience and easy maintenance, plus maximum airflow for superb performance results. Washable and reusable for many cleaning cycles, the tall evenly spaced