aFe Magnum FORCE Intake Replacement Air Filter w/ Pro DRY S Media (21-91087) 1533 they are double-walled for resistance

they are double-walled for resistance to heat discoloration

and BILSTEIN still responsible for producing the best there is

An oil temperature reduction of 30 to 40 degrees Fahrenheit can be realized with the installation of our specially designed Oil Cooler Kits

The APR insert is created from thick

aFe Magnum FORCE Intake Replacement Air Filter w/ Pro DRY S Media (21-91087) 1533 they are double-walled for resistanceMagnum Flow Pro Dry S Oval Tapered Gray Air Filter (21 91087) by aFe. This high flow Pro DRY S air filters are constructed with 100% polyurethane on all sides and will out flow the stock paper filters for improved performance. With three layers of progressively finer mesh synthetic media between 100% polyurethane top and base, this high flow, "oil free" conical performance filter provides maximum convenience and easy maintenance with excellent