The Denali Gets Performance Upgrades

New project “Dragonali” 2011 Sierra Denali HD

This week in the Truck Tech shop, LT and Austin are getting to work on the new project, “Dragonali”. It’s a 2011 Sierra Denali HD and it’s already gotten some goodies from Xcalliber Transmission and next up are some performance upgrades! Stay tuned to History at 8 am ET/PT to catch this project on the show.