Diablo Tuner worth the $$$?
I can't say anything about the Diablo, but I bought an SCT X-3 right after Christmas when the prices got reasonable, and it was worth every cent.
I had put on a Ford intake, Steeda elbow, the Ford reflash, Ford headers, X-pipe, mufflers and throttle spacer, and thought the results were quite pathetic for the time and money spent. I bought the tuner from CJ Pony parts with a custom tune for the mods, and the difference was huge! The car finally ran like it should have, better throttle response, more top end, just great.
Regards,
David