Closed Box with Scoop (398541, 3985461) 2004-2008 Ford F-150 5.4L V8, 2006-2008 Lincoln Mark LT 5.4L V8

Description Vehicle Fitment & Emissions Installation Instructions Volant air intake systems utilize a high-velocity venturi filter adapter which provides a smooth transition through the MAF sensor into the intake tube for a much needed airflow improvement over the factory rubber tubing and resonator box. Volant's Cool Air box is larger than the factory unit and incorporates a larger opening to collect a higher volume of colder ambient air. Filter Options Include: Choose a PowerCore® for the best filtration on the market with 100,000 Maintenance Free Miles of Driving and perfect for hard conditions Choose a MaxFlow 5 Oiled Filter for improved performance with the comfort of oiled filtration technology for those looking for horsepower Filter Type PowerCore® MaxFlow 5 Oiled Filter Filter Part # 61503 5144 Pre-Filter Part # 51922 51905 Filter Maintenance No Maintenance 5100 Throttle Body Spacer Part # 729754 This vehicle and part number combinations