Many factors play into "safe" boost levels. Your levels are in line with a stage 1 map, but without a data log, we can't tell you if the car "likes" the tune.
I Guess I made 2 threads that could have been 1. Here's my data log thread.Many factors play into "safe" boost levels. Your levels are in line with a stage 1 map, but without a data log, we can't tell you if the car "likes" the tune.