2011-2016 Duramax LML Shibby Harness Plug Kit (GMLMLKIT) 2007.5 - 2009 Dodge Exterior Drop exhaust gas temperature by

Drop exhaust gas temperature by up to 200°F and set the stage for all the performances you want

The Duramax engine Harmonics become too stressful on the cranks when getting into the higher RPM ranges and bigger power levels with the OEM firing order

D-701-20 116120912 116120405 2004

and even ourselves

Duramax 01-04 LB7 Injector Set: Remanufactured injector set at 25 percent over

2011-2016 Duramax LML Shibby Harness Plug Kit (GMLMLKIT) 2007.5 - 2009 Dodge Exterior Drop exhaust gas temperature by2011 2016 Duramax LML Shibby Harness Plug Kit (GMLMLKIT) This plug kit provides the harness caps to keep water and debris out of the vehicle harness under the hood and under the body of the truck.