need muffler help! quick question!
i have an 04 f150 heritage 4x4 standard cab v8 4.6L.
need to know what inlet/outlet size i need in the muffler along with the offsets... i'm putting duals on my truck so i know i need dual outputs (DUH) but do i need a centered inlet or an offset inlet???
e mail me the answer or post it here!


