I just ordered my Diablo and I was pretty excited about getting it. Currently, I'm completely stock. I have the Mufflex muffler delete on order also, but other than that, I'll be stock. After reading, it seems that I won't notice much difference on a stock tune? Kind of disappointed with that. All the Superchip guys are all "OMG WOWZERS!!" with their stock tune. Says it makes the truck a total different vehicle. What gives?
Also, does Diablo offer an Economy mode? Superchips offers this also. Which would be great for road trips.