I have an 06 F150 5.4L 3V with a K&N 57-2556 FIPK CAI, should I take this off until I get my EDGE upgraded. Also, dose anyone have any E85 custom tunes, I am planning on getting some soon and I would like to get an idea of the power and fuel millage gains. Thats it for now but I'm sure there will be more questions to come. O and my exhaust has no muffler with a 3" turn down before the axle.
Thanks, Trent
