I'm running the Diablo Predator with the 93 Octane boxed tune on my V-10. I bought it this year and this will be my first state inspection. I presume I have to restore the truck to factory settings first to pass emissions?

On a different note I accidentally filled my tank from basically empty with 87 last week and the truck has been running good. I thought it would have some pinging under a load or something. Of course I won't do that again but I am considering running the 87 octane tune. I know it doesn't do much except give you tranny improvements but this gas situation is obscene.