A few guys from the club have used these guys and have only good things to say. As clunk said the shops got to make a living too, and also back up what they have done. From what I have heard when you pick up you truck, it is tuned and running and no codes, limps etc. If it does have a problem I have heard of they stand by there product and fix it. You just have to pay for good service, much in all as we don't want to. You get what you pay for.