K&N OE Replacement Performance Panel Air Filter - Subaru WRX STi VA viscosity-5W20 Meticulously machined with the latest

Meticulously machined with the latest CNC 5-axis technology

All pads create more dust as they are bedding in especially if rotors are worn

technology and the special Molygen additive

Once seated

Quieter thanks to optimum decoupling of vibrations throughout the entire rpm range

K&N OE Replacement Performance Panel Air Filter - Subaru WRX STi VA viscosity-5W20 Meticulously machined with the latestThe K&N OE Replacement Cotton Gauze Performance Air Filter designed to increase horsepower and acceleration while providing excellent filtration. K&N air filters are covered by the famous K&N Million Mile Limited Warranty and will be the last air filter your car will ever need. Both washable & reusable, and is designed to directly fit into the OE factory air box. note: image is for illustration purposes and may differ on delivery