I have flowmasters welded in to the stock (2.25 inch) catback. I got hunks of metal..um..turndowns for christmas, but they are 2.5 inch. Since these are welded on, not bolted at a flange, will these fit the mufflers?
Did this on my old stang: The shop I go to put a 5-6inch adaptor peice in there between the muffler and the pipe which goes from 2.25 to 2.5 inchs. It will be no problem, and your car will sound great.