New to predator

[PSD QWIK FIX]

I recently discovered a Predator U7170 under the seat in my truck that I recently aquired, #BONUS!

Anyways I have a few questions -

Can I adjust the speedometer with this? I recently put 35s on and the speedo is way off, says Im doing 55 when its more like 68.

Can I adjust idle RPMS?

How do I go about writing my own tune? Or is that even possible?

thanks

[mikel]

tire size cant be adjusted unfortunately, nor idle rpm.

You can load any of the performance tunes, but theres no option for creating your own tunes.

Thanks