My truck ran great on the 93 Diablo tune with 91. But I do as recommended now and use 91. Although I have not used the canned tunes in a while.


I haven't contacted Jay Grene yet but intend to do so in the near future. He should be able to tell me if adding an extra 5mm to the throttle body will ...

I'm in the Nevada High Desert at 4000ft.
Car is a 2012 Challenger R/T 5.7L
The only Tier 1 fuels are Chevron and Shell. There is no 93 available anywhere except in California and I have no intention of going there. I'm running a stock 80mm throttle body, a CAI which actually does keep the IAT at ...