Just like the title says, which is the better tuner? There is a tuner one town over that swears by diablo, but then again thats the product they sell. One town over in the opposite direction swears by SCT but then again thats what they sell. The guys with the SCT prolly know more about what they are doing than the guys with the Diablo. Plus he was telling me about what they were doing down at the NRMAs. He said he was finding people with Diablos that were questioning what supposedly made the SCT better than the Diablo. Well he said he couldnt really give them a cool answer, just that he gauranteed them that he could make more power with their car and make the AFRs better and safer and make it run better than their car did with their Diablo. And he sold several on the bet that if he could get more power and a prettier AFR they would buy it and get rid of the Diablo but if he couldnt make more power than they didnt owe him a dime. And he always made more power. Plus he was actually sent to SCT in Florida to be trained on actually how to properly use their software and tune cars without any confusion and pretty much hit it right on the first time every time. But which do you all think is better?