Considering a bypass of your Cummins N14 engine's emissions system? A “delete,” generally referring to the bypassing of Diesel Particulate Filters (DPFs) and Selective Catalytic Reduction (SCR) units, can https://www.tumblr.com/volvod12egrdeletekit/832428469012103168/how-to-maintain-heavy-duty-diesel-engines-for?source=share