I am a new member, signed-up yesterday. Love to talk/discuss about my 7.5 GMC C/C LMM duramax. Add-ons: 20" wheel and tires, ready-lift leveling kit, westin nerf bars, S&B cold-air intake system, MBRP filter back exhaust, Hypertech Max Energy programmer (set on Stage 3). Recently purchased ECM from SoCal diesel with DPF delete and 100 hp EFI live tune, will hopefully install ECM and delete pipe next week. This is my 2nd duramax, previous truck was 03 GMC C/C LB7 duramax with many add-ons as well.
To note, the addition of the programmer, intake system, and exhaust did not improve my mileage. Hoping deleting the DPF will increase mileage. Friend in Houston deleted his DPF and picked-up ~ 3-4 MPGs.
Ready to talk duramax to anyone.
