I have a 2007 Chevy Silverado 2500 HD Chrome Edition with a 6.6L duramax diesel engine and an alison transmission. It has every factory option availabe exept a rear slideing window. Below are the upgrades I have added so far, as soon as:
  -Chrome grill and surround
  -Chrome emblem kit
  -Chrome 6" oval step bars
  -6" fabtech lift kit
  -Fabtech dirt logic 2.0 shocks all the way around
  -Dual stearing stablizers
  -18x9 motometal rims
  -35" procomp extreme mud train triply tires
  -Banks dual monster exhaust
  -Banks ram air intake
List of parts to come:
  -Banks Techni-Cooler Intercooler system
  -Banks programer

I am a building and roofing contractor and belive it or not this is my work truck.