Review on 🚀 K&N Cold Air Intake Kit: High Performance Horsepower Increase, 50-State Legal: Compatible with 1997-2004 Ford F150, F150 Heritage, F150 Harley Davidson, Expedition (Part Number: 57-2541) by Lance Harrison

The instructions are somewhat incomplete, you know what you are doing or has someone nearby who can do it. The only complaint I have is that the MAF adapter bolts barely leave enough thread to tighten the nuts. Nice power boost that is very noticeable and sounds amazing. Also, after a few days of pounding the gas, I finally tested the MPG increase, which is at least 1-2 MPG and maybe more in other vehicles, but for a high-end SUV, any MPG improvement is good. Some people complain that it's mostly plastic, but hey, it's designed to get COLD air into the combustion chamber, and the plastic is way better than a hot metal tube.