The Diablo Performance Tune is for 93 octane... then you should also have the 91 and 87 octane tunes on there as well. The basic difference is the amount of timing applied. There should also be a Factory HP tune, which is your original factory/OEM tune but it will allow you to change/modify the supported parameters for your vehicle.
As for the parameters and adjustments, take a look here:
http://diablosport.com/index.php?module ... lay&pid=98
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake