Removing the Cummins ISX system's emissions equipment 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/document/d/1XrdQ0fVaJXOPEYuNU7nZ2RHcYCsUlGcWJoNSvsBs5Jw/edit?usp=sharing