Got the S4 out on the road today with the first version of the tune to shake down the parts and make sure the car is running properly. Got on the throttle briefly to see how the boost comes on.

My intent is to operate around the same boost profile as I had with the K04’s in order to gather some comparison pressure and temperature data, so this will need to be toned down a little.  Then I’ll start to up the boost level and see what comes of it.