And make sure they leave 1 inch between muffler and floorboard (they put in spacers, do the job, then pull them out), or else you'll be smelling the not-so-sweet smell of burning carpet pretty soon. Fergus O U-20 with 1-3/4' piping, flex pipe, muffler but no resonator, and Ansa Tip (with the baffles in, for the moment)