Removing your Cummins ISX device's emissions hardware commonly called an "ISX delete" is a kind of increasingly common modification for heavy-duty trucks, but it’s critical to understand any implications. https://iseodirectory.com/listings13732468/cummins-isx-modification-guide-an-expert-guide-to-emissions-compliant-solutions-key-factors-and-performance-factors-for-truck-owners