got it all figured out emailed back and forth from the guys over at Diablosport and did my measurements and all is well and reading properly and in spec..
Ed

it seeme each time I go under modify tune and go to the axle ratio there is a asterisks next to gear ratio and tire rev any help would be great... it does not seem to be writing it into the car. HELP

hello everyone I am having an issue with my speedo being off after installing gears in my 2001 Bullitt. I went thru my predator u7146 tuner and updated the gears and tire size according to all the charts and my speedo is off. when I am one the highway doing 80 it say I am doing 70 my tire size is ...

I did the math per the convertion and came up with 784.247 does this sound right and if so do i need to put in a 784 785 or the complete 784.247

hello I have installed new wheels and tires on my 01 Bullitt the new tires are 245/40/18 what should I put in for the custom tune on my predator. Also I have installed the Kand N cold air for it is there a selection for this in the custom tune. thank you for your help