K&N Performance Cold Air Intake Kit 69-3531TS with Lifetime Filter for Ford Tarus SHO/Explorer Sport/Flex 3.5L V6 Turbo Ecoboost Estimated horsepower gain of 12.12 HP at 5327 RPM Designed to improve throttle response and engine sound Easy to install, usually in 90 minutes or less Replaces stock air intake system Lasts up to 100,000 miles before service is required (depending on driving conditions)