Ohhhh.... gotcha!! Yeah, you'd have to modify the box. Why not modify it? Not like it will ever be noticeable unless get rid of the cage for some reason. Lol No better music to your ears than the sound of a Pcars engine hitting hi revs. I have fabspeed headers, fabspeed cats and muffler delete. My car is so loud that even with the radio cranked it is still louder than the radio. It makes every song I listen to in the car that much better lol.

 

Well Put!