Performance Air Filter Kit w/2" K & N Filter Machined plates to replace the plastic air filter backing plate and crappy throttle body bracket. Intake bores are radiused for better air flow. All parts and hardware are aluminum, keeping weight to a minimum. Comes with a washable 2" K & N filter. Not drilled for the crankcase breather, which should be relocated away from the air cleaner. Also available with a 3" filter. Add $25.00.