Why Buy a K&N Filter? Designed 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 K&N replacement air filter is designed to improve vehicle 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 with the worry-free K&N® Million Mile Limited Warranty. K&N Air Filters are Engineered to Increase Horsepower K&N automotive replacement air filters are designed to add horsepower and acceleration to your car or truck by providing 50% more airflow. More airflow can result in smoother engine response and more torque throughout the engine's RPM range. K&N air filters are made from multiple layers of oiled cotton filter media that not only provide superior airflow but also provide excellent filtration to ensure long engine life. K&N Air Filters Are Easy to Install K&N replacement air filters are made for virtually any regular or off-road vehicle and are specifically designed to fit your vehicle's airbox design. Instead of repeatedly replacing your old paper filters, with K&N you can simply add a K&N replacement air filter every now and then and you'll have extended your vehicle's lifespan in just 5 minutes!