Removing this Cummins ISX engine's emissions controls commonly called an "ISX delete" is a increasingly popular modification for heavy-duty trucks, although it’s essential to understand all implications. https://vietbizdirectory.com/listings13736766/cummins-isx-kit-options-the-complete-guide-to-cummins-isx-specifications-benefits-and-emissions-regulations-for-cummins-isx-owners