pissedoff92

How do I find the option to do this? is it in custom tune menu? Im at a loss and im new to programmers. I managed to install the performance tune fine though =]

03lightning450HP

What model?

7700SCREW

Go into custom tune. Anytime you change anything like that it's considered a "custom tune" even though your not modifying your engine perimeters.

pissedoff92

I was playing with it and found perameters, i pressed modify parameters and then it said that option is not available with this model/transmission combo? i have an 04 heritage with the 4.6 and an auto

7700SCREW

That's strange!
Call diablo sport. They will have all the answers. 1-561-908-0040

DanYokim77

Yeah I also have the Diablo Sport and have looked for the setting to adjust the tire size but couldn't find it either. One thing I did do though was download the latest software/tune from the Diablo website. Was pretty simple to do. But yeah, I'm interested in knowing how to change the tire size as well because I'm running larger tires.