It would be better to go ahead n get 2.5 piping all the way back I'm just saying if all u can get is the muffler r u don't want to change the pipe they can just weld that one on there n it will still sound good especially with our motors. He has d16 n its deep. He's got the same motor n a hatch with a skunk 2 like I have but he's running 2.5 pipe n I still have 2 n mine is deeper