Considering a removal of your Cummins Signature engine's pollution control system? A “delete,” commonly referring to the deletion of particulate matter traps and Selective Catalytic Reduction (SCR) units, https://medium.com/@MatthewArnoldd/maximizing-heavy-duty-diesel-engine-performance-through-smart-diagnostics-and-professional-ecm-16ec58885c4c?sharedUserId=MatthewArnoldd