I'm doing an N/A to turbo swap. I basically have everything I need. I'm not going with the stock turbo, i have an aftermarket one with a custom manifold, front mount intercooler, external wastegate and bov. I have a N332 ECU, it clips into the stock wiring harness, but people are telling me i have to find a turbo II harness and swap them. I was just wondering what the difference was and if this is really nessessary.

Any help would be greatly apriciated, Thanks.