Removing this Cummins ISX engine's emissions hardware commonly called an "ISX delete" is a increasingly popular modification for commercial trucks, however it’s critical to understand the implications. https://docs.google.com/spreadsheets/d/1yfEZVMfkL2ffp7CIZ_KYNHo46xp77OAdY9Dof4BszXY/edit?usp=sharing