Performance Mods - Engine - 5.7 Hemi V8
I was able to change the tranny shift points to 5900 I have a full tank of 91 octane and also put in a bottle of octane booster. I selected the perf 87 tune and I gotta say....
I DIDN'T NOTICE ANY DIFFERENCE IN POWER AT ALL!
Only change was if shifted at 5900 instead of the stock 5500?
Also did...