All Duramax and diesel-specific discussion across generations. 6.2, 6.5, LB7, LLY, LBZ, LMM, LML, L5P, tuning, emissions, delete discussions (where legally permitted), towing builds, and heavy-duty platform topics belong here.
All Duramax and diesel-specific discussion across generations. 6.2, 6.5, LB7, LLY, LBZ, LMM, LML, L5P, tuning, emissions, delete discussions (where legally permitted), towing builds, and heavy-duty platform topics belong here.