Airaid 450181 Cold Intake System Review

Easy installation, huge upgrade over restrictive OEM installation. Easily adds 8-10hp to my Focus Titanium and makes your engine sound great! Highly recommended. The only thing I would like to add is that there are three variants of this article on Revain. I figured if I bought the cheapest of the three I would get a filter that needed oil to work properly. But I have a more expensive model with a dry filter so you can go the cheaper route and spin the wheel.