Originally Posted by 06WhiteFord150
I'm looking to buy the flowmaster super 10 muffler for my f150 06 5.4 but when i checked them out it had 3 different ones, me not knowing much about trucks , i was wondering which one goes with mine or does it not matter which i get? the 3 different ones were, 2.5 center IN/2.5 center OUT, 2.5 center IN/3.0 center OUT, and 3.0 center IN/3.0 center OUT. what is the difference between them?
The first one - yer exhaust tubing before and after the muffler is 2.5" stock.