hey there i have a 2500 gmc sierra 4x4 6.0 v8 2013 after installing the tune and going for rev limiter there is nothing i can change so that when it is in park or neutral and full throttle it pass the limiter and cutoff like the video down how can i do that
the talking is in arabic but doesnot matter hhehehehehe
https://www.youtube.com/watch?v=RVRxiWveej4
the second 0:10 video starts
please any help