Air Filter - Topline Performance Products

K&n custom air filters can increase horsepower up to 12%.They are available in a wide range of sizes, designs and shapes for virtually every application.K&n custom clamp on air filters are usually not used with oem air boxes because of their larger than oem size.They allow considerably more air flow than a stock air box set-up.Generally up to 25% increase in jet sizes will be required because of k&n filters increased air flow.K&n clamp on filters are not street legal.