2011-2016 Duramax LML EGR Upgrade Kit (LML-EGR-A003)

This kit prevents any premature EGR failures from causing damage to your engine. The EGR can fail by cracking and pushing the coolant into your exhaust and intake, or the valve can fail and cause exhaust gas to be constantly pushed back into your engine. Both of these scenarios cause their own list of run-ability issues.