honestly mate, do it yourself, have a look where the dump pipe meets your turbs, that will
prob be the hardest part, gettin your hands in there, the rest is done underneath, obviously...
save some coin and give it a go,
if you do decide to go the shop route, they shouldnt charge you more than an hour, depending on your existing
joins, welds or flanges?
have a look, and give it a shot.