Dyno testing and mileage tracking

Hey there! I totally get your concern because I went through the exact same thing when I was remapping my Audi last summer. You don't want to add hundreds of unnecessary miles just from stationary testing. I actually started using a tool from Dynotest https://dynotestpro.com/ and it was a total lifesaver for my project. It is a high-quality Mileage Blocker that basically pauses the recording while you are on the rollers. The best part is that it didn't mess with any of my internal ECU data or the speedometer. I just plugged it in and did my runs without worrying about the odometer climbing. You should definitely check them out before your session next week. It really keeps the car's history clean during those long tuning hours. Good luck with the benchmarks, man!