K&N Cold Air Intake Kit with Washable Air Filter: 1999-2004 Ford (F250 SuperDuty, F350 SuperDuty, Excursion) 5.4L V8, Black HDPE Tube with Red Oiled Filter, 57-2525-2

The kit replaces your vehicle’s restrictive factory air filter and air intake housing. K&N intake systems are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicle’s engine to inhale a larger volume of air than the OEM air filter assembly. More air means more usable power and

The kit replaces your vehicle’s restrictive factory air filter and air intake housing. K&N intake systems are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicle’s engine to inhale a larger volume of air than the OEM air filter assembly. More air means more usable power and acceleration throughout the engine’s RPM range. The filters on these kits are washable, reusable and easy to install with tools commonly available.

Product Features

  • 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
  • EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
  • EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools, K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower
  • DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
  • HIGH QUALITY: Made in America
  • RACETRACK APPROVED: The Official Air Filter of NASCAR, Trusted on the racetrack-made for your vehicle