You want to put an MVVS 77 with pipe on this thing? I have an OS 46 FX with pipe on mine and performance is phenomenal. I don't think there is any way that you could put that kind of power on it. I don't see why you couldn't mount it at 7 oclock and route he pipe that way-- mine is sidemounted and the exhaust runs through a header that takes it to the center line where the pipe is located.

Jeff