its some ghetto one i got off ebay, the way its designed its soposed to go cross the valve cover, but it does have the height, so i just ziptied it out front, still work the same. I got it off ebay for like 40 bucks a year or so ago. Work fine, and its beat the hell outta spending 200+ on a k&n setup. Didnt come with the K&n filter tho that i bought last month.