aFe Pro 5R Drop-In Air Filter Subaru WRX / STI 2008-2021 | 30-10161 Vehicle Model_Lancer Evolution 9 The entire power band gains

The entire power band gains performance and drivability remains the same

6L S/Si/VTEC)

Goodridge clutch lines are made with a sheath of tightly braided stainless steel wire to protect against abrasion & swelling

Torque to 43 ft-lbs

aFe Pro 5R Drop-In Air Filter Subaru WRX / STI 2008-2021 | 30-10161 Vehicle Model_Lancer Evolution 9 The entire power band gainsFor maximum airflow from a drop in filter for your 08 15 WRX look no further than the aFe high flowing Pro5R. This oiled OE replacement drop in performance filter allows significantly more airflow thanks to it's five layers of progressively finer mesh cotton gauze media. Washable and reusable for many cleaning cycles, the round topped pleats offer maximum surface area and deep pleats for excellent dust holding capacity for longer service cycle between