Hey guys. New to Duramax, not new to diesels. Picked up an 03 LB7 CC/SB with plenty of intelligent mods already done. Trying to continue to do the previous owner justice and push this truck to the 7-digit mile marker. This is my 6th diesel from over the years. 4 power strokes and 2 Cummins. Already seeing what all the hype is about with the pre-emission trucks from GM. Hoping to sponge up any and all input from the wealth of experience here. Thanks