I just wanted to add that I recently shorteend my intake hose from 21 to 18 inch so that the filter now sits on the splashgaurd rather than hanging under the car like in that pick. This still sucks in cold air, and protects the filter from water damage and from getting knocked off. I also bought a slightly smaller fitler (a K&N Re0930 filter for $45) Also, I switched back to the 3 in dia hose rather than the 2.5 w/ the addaptor.