The Sparks Racing Air Filter Kit is specifically designed to offer maximum air flow and performance. Our air filter kit is designed to meet the demands of any performance application. We use this set up on everything from simple bolt-on applications to National level MX & TT builds. Our billet aluminum adaptor ring is designed to increase intake flow and offer a seamless transition from the filter into the intake tube. We designed a self-supported dual-stage foam filter which offers exceptional air flow without sacrificing filtration.