Our Duramax LBZ, LMM, LML billet aluminum intake cross bridge will help you get the horsepower you need. If you are looking for more power, increased air flow and perfect fitment everytime, this high flow bridge is what you need. Available for all year model Duramax Engine from 2001-2015. Each intake features 2 - 1/8" NPT threaded holes to connect a boost guage and or injectables. The center hole is tapped for the factory IAT sensor. This is the perfect item for shops that like to build their own turbo kits or the "do it yourself" welder that has his own project. This is designed to work with S300 or S400 type turbos, not factory VNT type.