Ok, all I want to do with the predator that I just picked up used is adjust my axle ratio for my gears and adjust tire size.

Can someone go through the steps with me on how to do this WITHOUT installing the Diablosport custom tune? Do I have to go through and reset all the fuel parameters? I just don't want to install the 93 tune yet.

 

you need to go were it say install factory hp tune. then select modify tune. and then you will be able to change the gear ratio.

 

thank you! I guess I should have tried plugging it in before I go and ask questions. The manual said nothing about the factory tune option so I was trying to figure it out before I started. lol