In the K&N tradition of engineering power, K&N Performance Kits are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicle's engine to inhale a larger volume of air than the OEM air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range, with even greater power gains in turbocharged and supercharged engines. The filters on these kits are washable and reusable. K&N manufactures three high performance kits for the automotive applications. K&N Fuel Injection Performance Kits (FIPK), K&N's Ultimate Performance Product, Street Legal in All 50 US States, Designed to increase horsepower by as much as 10%, 10 Year / Million Mile Limited Warranty, Available for many popular vehicles, Comes with a Recharger Filter Care Service Kit.