ok i have a 07 fx4 5.4 and read all the talk about the af1 intake. people say to buy the 3 inch intake for the 5.4 so it wont run lean. now the problem i have is that i cant seem to find a 3 inch for the 04-08 f-150 with the 5.4, troyer and the af1 web site only list part #16418 which says 3.5 inch. so my question is where do i buy the 3 inch? thanks

 

Give them a call and they can get you squared away

 

ok thanks i will call them.