Removing this Cummins ISX engine's emissions hardware commonly called an "ISX delete" is a kind of increasingly widespread modification for industrial trucks, although it’s very important to understand any https://docs.google.com/document/d/1Pg3pTEB3SHVFcByXJ4pDvoy2jIMW-j7t1H-z5OZmBWQ/edit?usp=sharing