These PowerCore air intakes by Volant feature a heat-resistant air box that's designed to keep hot engine compartment air out of your air intake stream, pulling cold air from down below. This gives you a cold, dense air charge that delivers maximum punch and power potential. These PowerCore air intakes also feature an air filter that's specifically designed to stop ultra-fine particles from harming your engine.Other key features include:* Increased horsepower and fuel economy* Maintenance-free--never need cleaned or oiled* PowerCore air filter material can even get wet without harm* Aluminum air box lid adds style to your engine compartment