How big is the diameter of the factory h-pipe inlet and outlets? Same as the mufflers, 2.25"? Or is it 2.5"? I was looking at a BBK O/R X-pipe, and the diameter is 2.5", will it bolt up to my factory pipes? I searched, but couldn't find anything.
I hope so because tomorrow I'm installing my Flowtech X-pipe onto the stock pipes. I think it should fit fine but I'll let you know if no one else does by tomorrow.
yeah, stock is 2.25" and most aftermarkets are 2.5" then they go up to 3" if you have some more motor that needs the extra exhaust space. it will bolt right up due to the ball and socket joint our mustangs have