K&N 57-9013 FIPK Performance Air Intake System Estimated horsepower gain of 6.22 HP at 4848 RPM Designed to improve throttle response and engine sound. Clamp Material-Stainless Steel Lasts up to 100,000 miles before service is required (depending on driving conditions) Replaces entire factory air intake system Easy to install, usually in 90 minutes or less