I just had the throttle bodies serviced at my dealer and had to wait at least a week for my appointment. The work that I had done was done the same day of the appointment. While I had it there I just told them to replace the plugs and air filter while they had everything apart and also included an oil change at my request. Again they had it apart for the throttle body service, so it was a good time to get at these other items I listed. When all was said done it took about 3 1/2 hours to get it all serviced. I was happy with the work they done. It runs great!