Originally Posted by wecsubloc
Hey everyone I am new to diesel world. I am looking @ different cold air intake systems for my 2001 f350.Ive seeen members talk about 6637. I also saw a tru-flow system that uses stock air box.Is it possible to use the 6637 and keep stock battery tray?Just thought Id thank yall in advanced.Oh the only mods on truck right now r drop in k&n filter,supercips micro tuner set on fuel economy and tow mode.
The best? Ford AIS. I run it and love it. It will support a bit over 400hp without modding the box.
6637? I used it and it worked OK. Too loud for me. Can you keep the batt tray? Yes.
Tru-flow? No clue.
And yes, ditch the crappy K&N.