Duramax LML Rear Engine Cover Coolant Return Plug Fleece Performance DODGE/RAM " High strength cast iron with

High strength cast iron with ADI heat treat process for maximum strength

Superior back pressure regulation through RPM range

eliminating the restrictive bottle neck found in the factory intake

Licensing a module gives you the ability to tune it

Duramax LML Rear Engine Cover Coolant Return Plug Fleece Performance DODGE/RAM " High strength cast iron withWhether you're putting on an aftermarket turbo or deleting the EGR system on your LML, this coolant return plug will help you put the finishing touches on the job. The plug is made from high quality 6061 aluminum, anodized black, and laser etched with the Fleece Performace "F". It comes complete with a high temperature silicone o ring to ensure you won't have any leaks.