Removing your Cummins ISX engine's emissions controls commonly called an "ISX delete" is the increasingly common modification for industrial trucks, although it’s critical to understand the implications. https://one-directory.com/listings1348313/cummins-isx-delete-solutions-a-detailed-explanation-to-cummins-isx-kit-options-components-and-maintenance-guidelines-for-heavy-duty-truck-operators