We are running the stock knock sensors on a Vortc 4200 using MS3-PRO, they work great, although I don't know a lot about them. I had a hole cut in the inner fender panel for the wastegate tube to exit and it was banging against the inner fender panel and setting off the knock sensor. Scott Clark said it was not in the range where detonation would be, he knew right off that it was something else.
