91 Octane
1st tune
APR IS38
First runs
De-tune lol
Wide open WG log
FR Not Building Pressure
New oem lpfp
Custom tune
New o2 sensors
new o2 sensors, cold start
V19
Good bost at low-mid rpm. Need more up top
335i diy tune
Multiple data logs, no success on achieving more boost. Best 1/4 mile trap speed 169 kmh