11-16 Duramax LML Stealth Module Bed Introducing UnderLiner – digitally designed

Introducing UnderLiner – digitally designed to perfectly match the contours of your specific pickup truck bed

Merchant Automotive has put together a complete LML Duramax Diesel engine head gasket kit to include everything you need to get the job done

This leaves behind nearly a quart of the dirtiest oil

2 Year Powertrain Warranty

Boost pressure can be increased to improve horsepower potential

11-16 Duramax LML Stealth Module Bed Introducing UnderLiner – digitally designedMake your diesel have more efficient power and fun to drive with our Chevy GMC Duramax 6. 6L Stealth Performance Module exclusively for Chevy GMC Duramax years 2011 2016. Your module will be a stand alone computer that simply plugs in under the hood of your truck. It will not increase fuel volume, so theres no need for any other modifications. Make your truck work smarter, not harder! Get that extra boost in performance without any harmful side