hello everybody how are you
2016 gmc sierra 5.3 v8 the exhaust is staright pipe for offroad use i need it to shoot flames while bouncing of the rev limiter in park and neutral at 6000 rpm how can i do that i saw a tuner do it but wont tell me the way i usually do it on 2007-2013 by disable ETC rev limit and enable spark rev limiter waiting for an answer