K&N Performance Cold Air Intake Kit 57-3026 with Lifetime Filter for 1988-1995 Chevrolet C/K Truck 5.7L V8 Estimated horsepower gain of 6.72 HP at 4107 RPM Designed to improve throttle response and engine sound 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