i just got a 2005 f150 4x4 with a 4.6 in it i was going to have a muffler shop just weld in a single in single out muffler and dump it would a offset in center out work also im going to get a 4x9 magnaflow muffler if that makes a difference

 

yeah offset in centered out will fit right in place. Maggie muffler will would good on it