Why Buy a K&N Filter? Engineered to increase horsepower and torque Easy-to-install design Durable, washable and reusable air filter Million Mile Limited Warranty Lasts up to 50,000 miles (80,467 km) before service is required (depending on driving conditions) K&N Reusable Air Filter A replacement K&N air filter is designed to improve a vehicle's performance, provide excellent engine protection and last the life of your car, truck, motorcycle, ATV and more. K&N air filters are easy to install and come worry-free with the K&N® Million Mile Limited Warranty. K&N Air Filters are Designed to Increase Horsepower K&N automotive air filter replacements are designed to add horsepower and acceleration to your car or truck by providing 50% more airflow. More airflow can result in smoother trotting response and more torque throughout the engine's RMP range. K&N air filters are made from several layers of oiled cotton filter media that not only provide superior airflow but also excellent filtration to ensure long engine life. K&N Air Filters are Easy to Install K&N air filter replacements are made for virtually any regular vehicle or off-road vehicle and are specifically designed to fit the design of your vehicle's air box. Instead of changing your old paper filters over and over again, with K&N simply pop in a K&N air filter replacement from time to time and you'll have increased the lifespan of your vehicle in just 5 minutes!