A proper tune takes 2-4 hours depending on the fueling system in use. I can tune any bike for 100% throttle in about 30-40 minutes, but that's not where you do the bulk of your riding. Some bikes can take 30-40 minutes of set up time just to get dyno ready. You need to set rear tire pressure, install the specific O2 sensor, find and plug into the correct ECU cable for the RPM signal (in some bikes this requires removal of the tank), and properly heat soak the motor (this alone takes 20 minutes). Tuning has to occur at all throttle settings available within the fueling module, this can be 2.5%, 5%, 10%, 20%.....80%....100%. Performing all the runs consecutively can cause the system to overheat (even the frame will be hot to the touch), so you need to shut things down for 2-3 hours and give the bike a break at least once or twice. Call the shop and speak to the dyno operator, don't be shy, pick their brain. You can see why some shops charge more.