lol its all good ya 06-07 tach was a bs.. the 08-10 the tach issues were resolved... again it reads to 19k on the tach.. very optimistic, it will rev freely til 16,500 and still make some power till then.. the overrev to 17,200 is merely a saftey gate so people arent bounching of the tach limit there is so much power loss from 16,5 to 17,2 that you really must shift between 15,500 and 16,000 to avoid the powerloss