Fairly new at this so I'm goona give this a shot. 2012 GTI DSG, CTS intake, R8 coils, NGK plugs, CTS charge and discharge pipes, beluga exhaust, COBB AP. Decided to get an ARM Dp and go stage 2 finally, installed it last night with no issues and turned to COBB OTS stage 2 93, and got noticable...