UDT 2001-2016 AL5 A40 A50 T87 Duramax TCM Tuning When 4x4 Low Is Selected::Start/Stay 4th Gear (850hp+) (Sled Pulling) For instance
UDT 2001-2016 AL5 A40 A50 T87 Duramax TCM Tuning When 4x4 Low Is Selected::Start/Stay 4th Gear (850hp+) (Sled Pulling) For instanceUDT 2001 2016 AL5 A40 A50 T87 Duramax TCM Tuning Features Increased Shift Points Improved Lock Up Strategy Optional 2nd Gear Start w TH Optional 3rd 4th Gear Start w 4x4 Low PLEASE EMAIL STOCK READ OUT!
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