Keep in mind that they may rewire vehicles as part of their services, but that does not mean they are much faster at it. The reason is all vehicles are different and a harness has to be routed a certain way through and around obstacles. If all they rewired were 51 Chevy 1/2 ton trucks they would be fast by the 5th one and screaming fast by the 10th. The real world does not work like that. The time Speedway estimates may be for the 5th or 10th time it gets done. I do RV repair and when installing tow packages on the customers towed vehicles, BlueOx will tell me it should take 4 hours. Sure, for the 5th time in a row of that same vehicle maybe. I just did my original stock harness and it was about 6 1/2 to 7 hours. Removing the old, installing new, securing as needed and testing. I am not sure how that compares to the speedway 12 circuit. If you don't trust these people, and it sounds like you are on the fence, call around and get some other estimates. Be careful how you pose the questions and give any background info, many business owners know each other and talk frequently.
