I bought a 2010 Canyon 4x4 with the 5.3 about a month ago. Already bored with the power. So, I installed a turbo under the truck where the muffler used to be. I had a local shop install a temporary tune in the truck until the liquid intercooler arrives. While I'm waiting on parts I was wondering if anyone has launched at the track in 4 wheel drive? Also a week after I bought the truck the transmission went out so, it has a new transmission with a few upgrades. I will set the boost to make around 450 rwhp. It made 338 rwhp on the temp tune. Thanks for your help.