Afternoon all, I currently have a 2001 Silverado 2500HD with the 8.1 Allison combo. Put a superchips tuner on it just to see what they themselves changed. Upon looking at a comparison of the stock file I saved when I got it, the power enrichment seems to be the only thing messed with on the 87 octane "tune" lol.

Anyways, another table that has been changed is 15410 & 15413 which torque reduction vs. torque vs. shift. - normal and performance. These tables have no effect on the tuning when an allison transmission controller is installed do they? I've attached the screen shot I took of the differences between the two.

Thanks!!

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