Removing your Cummins ISX engine's emissions controls commonly called an "ISX delete" is a kind of increasingly common modification for heavy-duty trucks, but it’s essential to understand the implications. https://1-webdirectory.com/listings13756015/cummins-isx-modification-guide-a-comprehensive-overview-to-engine-components-potential-drawbacks-and-maintenance-guidelines-for-diesel-engine-owners