Well MJW930..Thats an excellent question. I wish I had all night to explain every detail of every forum thread and quote from Diablosport on their site about the 2013 ZL1 tune "COMING SOON"...THE FORUM THREAD THAT WENT ON FOR MONTHS...the thread that lead EVERY 2013 ZL1 OWNER TO BELIEVE THAT AS WITH THE 2012 ZL1, A 2013 TUNE WOULD BE AVAILABLE SOON....but the short answer is that before any of this took place, before I ever went to the Diablosport forum searching for 2013 zl1 topics, A RESELLER CALLLED TORQ ADVERTISED THE TRINITY FOR THE 2013 CAMARO ZL1....so silly me.....I bought it and it didn't work. Then when I contacted Diablo and pointed out the fact that a vendor of theirs was advertising it on their website as a tuner for the 2013 ZL1....Torq appologized and changed their website to ( not available yet). Apples to oranges? I was sharing my experience with spaceaholic about my disappointment with the trinity and Diablosport...just as he obviously was not satisfied considering he was ready to sell it at half price. Thats Apples to Apples....Diablosport and the Trinity programmer. Please enlighten me with your wisdom as you seem to know more about my experience with Diablo than I do. Normally I appreciate someones 2 cents..not today.Diablosport has tunes for the 2014 C7, comparing apples to oranges. Btw, why would you buy a tuner before a tune was released?