Cobra RPT Air Cleaner Kit For Harley Softail Features Flows better than stock or competing units because of unique internal venturi design Optimizes overall performance High-flow K&N Air Filter element ensures the maximum air intake and protection Slim profile keeps the unit away from the rider's leg Includes machined aluminum RPT ring, external plate, legs, fasteners, seals, backing plate and mounting hardware. Formed stainless steel mesh insert Made in the U.s.a.