Removing this Cummins ISX engine's emissions hardware commonly called an "ISX delete" is the increasingly popular modification for heavy-duty trucks, however it’s critical to understand the implications. https://thedeepdirectory.com/listings13758860/cummins-isx-delete-solutions-the-ultimate-guide-to-emissions-compliant-solutions-potential-drawbacks-and-maintenance-guidelines-for-fleet-managers