I did the swap (2+2 into a twin turbo) a while back and now on to the next car...i cant seem to remember if i need to buy a 2+0 H-pipe or do i need a 2+2 H-Pipe? and as for the Mufflers..I have a 96 twin turbo rear subframe on the car, i gotta use 2+2 mufflers correct?