K&N Performance Cold Air Intake Kit 77-1560KTK with Lifetime Filter for Dodge Durango, Jeep Grand Cherokee 3.6L V6 Estimated horsepower gain of 10.75 HP at 5447 RPM Designed to improve throttle response and engine sound Easy to install, usually in 90 minutes or less Replaces entire factory air intake system Lasts up to 100,000 miles before service is required (depending on driving conditions)