A. For starters It is never ever great to chiptune engines that use a AT gearbox, 2nd of all I don't recomment to chiptune this CFE engine particularly! We have run pretty some examination, and soms exams with blow off valves not Functioning causing overpressure from the turbo (that is https://gearboxcvtproton06272.pointblog.net/rumored-buzz-on-gearbox-cvt-proton-77689749