Removing this Cummins ISX device's emissions hardware commonly called an "ISX delete" is a increasingly widespread modification for commercial trucks, although it’s critical to understand the implications. https://princedirectory.com/listings13865505/cummins-isx-delete-kit-everything-you-need-to-know-to-engine-maintenance-available-options-and-maintenance-guidelines-for-heavy-duty-truck-operators