Diablosport Forums

I've got a 2010 CTS-V. I was wondering if anyone knew the difference between the Diablo Tune and the 91 Octane tune. Looking at the choices for pre installed tunes, the Diablo tune is the first one to select and then they appear to be more "aggressive" tunes as you make your way down the list. Just wanted to see if this was the case.

the diablo tune for 93 octane has a slightly more aggressive timing set up.


Thanks