The Air-Force Filter Kits have been designed for each model, maximizing airflow to increase horsepower and lengthen engine life Replaces your stock filter system. Allowing the air to flow up to 50 percentage better, which allows your ATV to run more efficient, leading to more power Includes an adapter plate specially designed for each model, designed with a positive seal o-ring Available with foam filters or a K and N filter All kits include a precharger or foam wrap and all hardware for installation This product can be used with Yamaha Raptor 700 ASKFY-1 Yamaha Banshee ASKFY-2 Yamaha Raptor 660 ASKFY-3 Yamaha Raptor 350 ASKFY-4 Yamaha Warrior ASKFY-5 Yamaha Wolverine ASKFY-5 Yamaha YFZ450 ASKFY-6