Banks Ram-Air Superiority. Molded, streamlined filter housing. high-flow Banks Ram-Air filter. Flows more cool, dense ram-air into engine. Includes service kit for use every 30,000-50,000 miles.Ram-Air Cold-Air Intake System, Oiled Filter for use with 1999-2004 Ford 6.8L, Truck/Excursion.Extensively tested & validatedEnclosed housing keeps out hot, power-robbing engine airInhales cooler outside air for more power & MPGGiant filter maximizes high-flow filtrationHelps engine run coolerAccommodates engine movementPrevents component damageExtends service life and requires fewer cleanings5-year Limited WarrantyMolded, streamlined filter housingFord 6.8L, Truck/ExcursionIncludes service kit for use every 30,000-50,000 milesOILED Air Filter ElementEmissions Compliant: D-161-80