2024 Duramax Speed Limiter Removal Procedure. Have a customer with a 2013 wanting his gone. Trying to raise the speed limter not sure how to do it with v8 software i opened up the v7.5 scan and opened up the tune file but it comes up the verison of.

I had a hypertech max energy tuner for my previous 08 lmm (truck) that allowed me to adjust the speed limiter, calibrate the speedo based upon the gear ratio and tire size, and had 3 tunes for performance. Have a customer with a 2013 wanting his gone.