K&N Cold Air Intake Kit: High Performance, Guaranteed to Increase Horsepower: 50-State Legal: Fits 2004-2008 Ford/Lincoln (F150, Expedition, Mark LT) 5.4L V8,57-2556
Brand: K&N


ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle.
GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
IMPROVED ENGINE SOUND: Hear the power under the hood.
WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants