Removing this Cummins ISX engine's emissions controls commonly called an "ISX delete" is a increasingly popular modification for industrial trucks, however it’s essential to understand any implications. https://docs.google.com/forms/d/e/1FAIpQLSe7mVDYbW0hhxVkeEbHREjuxpEBueegcIAbYotOPcUf8lVeFw/viewform?usp=publish-editor