Had to wait for the air filter(back order) but when they arrived I went down to pick-up the kit. They installed it for me. Works great, intake noise starts at about 1/3 throttle and goes up from there. No noise when cruzing. There is an improvement in acceleration, more so above 3000 rpm. Only been on the truck a week but the computor has been showing at least 1 mpg improvement. Very happy with the product, as this is a true cold air intake.

 

I have one too on my 04 5.4L and love it! Love the sound it gives when accelerating hard.