This filter fits in the factory airbox. Requires either an aftermarket flange or a modified OEM flange (not included). Pics of flanges are included here for example only.
K&N Filter YA-3502
K&N Custom Air Filters can increase horsepower up to 12%. 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.
