Installed HKS twin plate (GD pro) recently. Got the ice cream sound when holding the clutch which is norm, but will there be any sound (for example, very soft "eeeee") sound when the car is idle and not holding...
I have managed to succesfully interface all three items together to datalog a/f in actual RPM vs Boost. This makes it much easier compared to hooking up A/F at tailpipe and guessing.