2020+ LM2 Performance Parts Discussion
Hello everyone, I purchased a 2021 GMC Yukon XL with the 3.0 Duramax back in May, the same week I also purchased a Banks iDash SuperGauge. Although the iDash works with all the 2020 LM2 GMC/Chevy truck models as well as the 2021 LM2 Chevy Truck/SUV models, this unit doesn't work with the 2021...