The 2011+ Subaru STI aFe Power Drop In Replacement Filter upgrades your OEM paper filter with a polyurethane filter for improved horsepower and torque. Two layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results.
- 2011+ Subaru STI aFe Drop In Replacement Filter
- Filter is made with 100% polyurethane for long life and multiple cleaning cycles
- Open pleats provide excellent dust holding capacity
- Urethane bump seals insure tight, no leak seal over the life of the filter
- Oil-free filter