This is a 2012 GMC 4X4 with the LS3 6.2 (the same engine that is my C6 Covette). This is the earlier model 6.2 that does not have the problematic cylinder deactivation that the later 6.2 had. I installed a Whipple super charger 2.3L at 105,000 miles. This is 600HP at the flywheel. It runs awesome. It has a salvage title from a deer strike and was professionally repaired by Odegaurds in Great Falls. It has the max tow package, 3.73 gear ratio, locking diff and low milage which made it a perfect candidate for the performance upgrade. It has a Flowmaster muffler with great sound. Tires are like new. Move bumper with $2000 of Rigid lights. I will not respond to low ball offers. May trade for sports car.