I have Stage 1 and have purchased a Stage2 WG. I plan to install when I can crack three stubborn heat shield bolts. In the mean time I was wondering just how my boost profile will change? Will my car gain more boost earlier? Will the peak boost be greater? Both? Will the various WG rattling sounds be quieter or more pronounced? I would assume that the stronger spring in the Stage2 WG would let the unit open later and possibly gain boost from mid range to top rpm but am not sure how all the pieces work together.

 

Bob, get the damn bolts out and put the thing in already!!!! LOL

I think you'll see a couple of pounds extra boost, maby a higher spike at low rev's. That waste gate is suppose to be set to 4 mm with the stage 2 kit. People here recomend 6mm. Experiment with it....that's half the fun. Good luck.

Confucious says, "If theory does not match reality, then make up new theory"!