A. First of all It is under no circumstances good to chiptune engines that utilize a AT gearbox, second of all I do not recomment to chiptune this CFE engine specifically! Now we have operate quite some test, and soms checks with blow off valves not Functioning causing overpressure from https://jaredstqmg.bloguetechno.com/5-essential-elements-for-gearbox-cvt-proton-69073101