Well got my first Duramax, came from a 6.4 Powerstroke, truck needs a little work but thought it was a good deal and is decently clean. 2007 CCLB 249k on it came with edge cs2 tuner some type of egr delete, looks like t case rear housing has been replaced. Some type of customer exhaust last owner really didnt know. Looks like my journey begins with cleaning up some sloppy work from the previous mechanic. Egr delete has a leak, looks like a power steering gear leak as well. Hope to meet lost of people and have a great time doing so while owning this truck.