I'm under the impression that all of the Mopar orange ECU have a built in rev limiter of 6000 RPM in them, all of them
Not my orange box. I shift about 6200 and trap about 6400 and it never misses a beat with my orange ECU. And when we had it on my sons Dart with his 400 he would push it over 6500 and still it worked good. He ran no faster when we put MSD on his car. Ron
