Just looking for some clarification

[02_24v2wd]

I just bought a Predator #U7130. I was under that assumption it did tire size re-cal and I dont see an option for this. Also does this model support the "Idle up" feature? I love this thing so far but am confused on those details. Thanks Pete

05 2500, 6spd

[RRAM]

nope the 7131 does the tires stuff. this one just has the 3 tunes and the option to add the rkl tunes. supposed to be able to turn off the speed limiter as well but I have not found it or really care