I havent installed it. But planning to use the canned tunes.Honestly I didn't even know that Diablo was tuning S550's. I had one in my Silverado and still have the Trinity unit from when I sold the truck. Did you get someone to custom tune it or are you using the canned tunes?
Diablo sucks when it comes to customer service. I would never buy their product again just for this. SCT on the other hand has awesome customer service. They really impressed me.Diablo has lost a lot of traction in the Ford tuning department.. at one point they were only considered for tuning Chrysler products... I don't know how they are now.. but i would only use SCT or HPtuners at this point in time..
I didn't have much luck with Diablo either, but I didn't deal with them for long. There was a popular guy on the forums who everyone recommended for custom tuning using the Diablo Intune and Trinity, and his service was 100x better. That tends to be the case though when you're dealing with corporations vs. individuals.Diablo sucks when it comes to customer service. I would never buy their product again just for this. SCT on the other hand has awesome customer service. They really impressed me.
my intune is for sale! less than a year old. have receipt. $200Check out their forum. I have complete trust in DS. Plus, you can get used DS tuners for much cheaper than SCT stuff.