Removing the Cummins ISX engine's emissions controls commonly called an "ISX delete" is a kind of increasingly popular modification for industrial trucks, but it’s critical to understand any implications. https://directory-2020.com/listings1320787/cummins-isx-kit-options-the-essential-guide-to-cummins-isx-specifications-benefits-and-legal-considerations-for-heavy-duty-truck-operators