[SeanWRT]

Guys, I made a list for you. See the attached picture. To the best of my knowledge.

Outside of the obvious EWG big turbo, keep in mind the following two points that is critical but is not often talked about.
1) Steel forged crankshaft is the key to M135/235/M2 making noticeably more power everything else being equal.
2) M2 manifold is why it easily holds up 16+psi at 6k+ rpm, with stock turbo and pump gas.