So "Santa" (aka, my wife) heard me loud and clear this year and I am happy to be expecting these bolt on mods for Christmas
(Flowmaster Axle Back Exhaust and Ford Racing X-Pipe)...I know the axle-back exhaust mod doesn't require a tune, but does adding an X-pipe require me to re-tune? I've heard its not necessary but will help benefit...I just want to get the best performance out of these upgrades.
Re-tune or no tune needed? Thanks in advance and Merry Christmas!