K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed to Increase Horsepower up to 9HP: Compatible with 4.7L, V8, 2002-2012 Dodge Ram 1500, 57-1529. OEM Part Number 57-1529. Its still new in the box (open box)
Key Features:
Guaranteed to provide increased horsepower and acceleration (8.63 hp @ 4,688 rpm measured by manufacturer).
Engineered to specific vehicle design. See vehicle search above for compatibility.
Easy to install, usually in 90 minutes or less and lasts up to 100,000 miles before service is required, depending on driving conditions.
CARB exempt and street legal in all 50 US States.
Air filter is washable and reusable for extreme durability, but can also be easily replaced if necessary.
Works with original manufacturer computer systems.
Replaces OEM filter and air box, and is designed to use factory holes and mounting points whenever possible.