Removing the Cummins ISX system's emissions controls commonly called an "ISX delete" is the increasingly common modification for industrial trucks, although it’s essential to understand the implications. https://docs.google.com/spreadsheets/d/1yfEZVMfkL2ffp7CIZ_KYNHo46xp77OAdY9Dof4BszXY/edit?usp=sharing