Traded it in on a 2007.5 LLM Duramax. Plans are to order a EFI Live Autocal w/ DSP5 5 Switch, 5" Exhaust (delete the DPF), EGR block off plate, ATP Release Valve Shim Kit, PCV Re-Route kit.
Going to tint the windows, add some 285's, level it on stock keys, and plasti dip the wheels/emblems.