Originally Posted by
2XS
The MPS has a unique exhaust housing inlet and outlet. It doesn't match anything else.
3 options:
1: Upgrade the std turbo (Hi-flow) to retain any mods (DP etc)
2: Upgrade the turbo (30/71 etc) via the USA (exhaust housing to suit)
3: Any other upgrade will require new exhaust manifold, DP and inlet.
Option number 1 is probably the best way to go, number 2 may require further mods to keep the car running correctly. I have heard the wastegate hole is too small to be used properly.