I've only had my truck for about two months and about 1,500 miles. It is a 2013 CCSB G56, it has egr and DPF delete, and I think it has a DD clutch. It has to have tune and my guess is EFI because there is no screen or module. It will be going in for a bunch of recalls that haven't been done including the fuel heater issue and water pump as well as a few others. My question is what do I have to tell the dealership to make sure they don't overwrite my tune and force me into getting a new one sooner than I wanted? Thanks guys!