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