I will freely admit that I'm pretty new to the turbo world. I've only ever owned N/A cars, so I've never had one apart or spent a lot of time around them. From my understanding the shop is using the hot side from the donor TD-05, and using the cold side from my TC-05. I'll have to add water lines which will be interesting. He's machining the cold side to fit a slightly larger compressor wheel. He told me over the phone that I might see around 4 psi of increased boost. I assumed with the fuel turned up and a larger exhaust I would see an increase in boost. Why would this not be the case?