After receiving the tuner, I updated through "ignition". Plugged in to my port, and could only get 12% download from stock settings. Called Superchips, got 5 more updates, had to unplug 2 radio fuses,and worked great. 3 to 4 mpg better on economy setting without losing power. Am going to try towing mode, and hope for good results as well. Good product, very good customer support!
2011 AVALANCHE tune
Easy to install but be sure to follow instruction. (Pull proper fuses). Disconnect (8-4 cylinder) drop out. You will have a smother , quieter and more responsive engine. There are also two options to try the premium option and the regular option I have yet to try their premium option but I am very satisfied with the regular option. For my money it was well worth it.
Hyper tech 2.0 programers
I bought this to bypass the G.M. Active fuel management system. Instead of going to the stealership I purchased this programer to set the computer to the v-8 only setting. This repaired the 4 engine codes I had set on my computer. The Avalanche kept turning off the fuel to four cylinders and setting the check engine light . The engine runs great now and this is a bargain 20 minute repair to program the computer. Ten days now the 5.3 runs like a top and no codes . Thanks Again!