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Ok, here's the deal. My Nephew is in the Marines. He's stationed at Camp Lejeune right now. He has an 03 Duramax that is bone stock. His Dad and I want to do a little bit of upgrades for him before he gets back. Only problem is, I know nothing about GM's. I want to get him an exhaust, tuner, and...

Hey guys, I'm new to Comp D, but not new to Diesel's. I see a lot of familiar people on here. Glad to be a member here!