It drives me nuts to read posts like this. $6000 for what? You got it back and it had no power? Several weeks to unlock and read codes? It is just crazy. I'll say it, "they don't know what they're doing and you're getting ripped off". List price on a cat is between $550 and $850 depending on what year you have. I service 2 of these models with 37000 hours and they have been through **** but they have the proper power and original cats. I don't know what's wrong with yours but this is way out of line. Sending the lift back from the shop and saying "there you go, you're all set" proves they don't have a clue. Rant over.