Considering a removal of your Cummins Signature engine's exhaust system? A “delete,” commonly referring to the deletion of Diesel Particulate Filters (DPFs) and Selective Catalytic Reduction (SCR) systems , https://cumminsisxdeletekit364147.widblog.com/98797760/cummins-isx-engine-delete-expert-guide-to-cummins-isx-engine-options