Perrin Performance High-Flow Replacement Air Filter - Subaru STI (2019-2021)

PERRIN Panel Filters use open cell foam to capture dust and dirt. Foam filter elements offer superior performance with minimal airflow restriction and amazing dirt holding capacity. Washable and reusable, PERRIN Foam Filters can last the life of your vehicle.

Installation can be performed by anyone! The air filter is designed to be replaced without tools and can be cleaned as part of your yearly maintenance, making this one of the easiest upgrades for your car.

Increase horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune or recalibration you add is specific for ALL modifications added to the vehicle.