Features: High-strength A356.0-T6 aluminum construction Precision cast for consistent quality Improves airflow for increased performance Enhances intake efficiency under load Reduces risk of boost leaks Bolt-on intake tube with O-ring seal Improved heat resistance and durability Direct bolt-on installation design Includes all required hardware and gaskets Compatible with stock and PPE manifolds Supports factory intake air temperature sensor Designed for LBZ and LMM Duramax engines Give Your Duramax The Airflow Upgrade It Actually Deserves If your LBZ or LMM Duramax still relies on the factory bridge manifold, you are leaving performance on the table without even realizing it. This PPE high-flow bridge manifold is designed to clean up airflow and help your engine respond the way it should when you get into the throttle. Right away, you will notice a more consistent pull, especially when the truck is working hard or building boost under load. Additionally, the upgraded design solves one of the most common factory issues by securing the intake tube directly to the manifold, which helps eliminate those frustrating boost leaks. That added reliability makes a difference whether you are towing, daily driving, or pushing your setup a little harder than stock. The durable aluminum construction also gives you peace of mind that this is not a temporary fix but a long-term upgrade. Installation stays simple with a direct bolt-on fit and all the included hardware, so you can get it installed without overcomplicating the job. It is a straightforward upgrade that helps your truck run stronger, smoother, and more efficiently every time you drive it. Precision Engineered Design Focused On Airflow Efficiency And Reliability This bridge manifold is built using A356.0-T6 heat-treated aluminum, which is known for its strength, thermal stability, and resistance to fatigue under repeated heat cycles. The casting process uses permanent steel molds to ensure consistent wall thickness and precise fitment across every unit. Furthermore, the improved internal airflow path helps reduce restriction as air moves from the intake system into the runners, supporting better combustion efficiency. The integrated design that bolts the intake tube directly to the manifold creates a solid mechanical connection that the factory setup lacks. This is paired with an O-ring seal that helps maintain boost pressure and reduce the risk of leaks over time. Compatibility is another strong point, as this kit works with both factory and PPE lower intake manifolds while also retaining the factory intake air temperature sensor. The included hardware and gaskets ensure proper sealing during installation, which is critical for long-term performance. Altogether, this system provides a well-balanced upgrade in airflow, durability, and sealing for 2006-2010 GM 6.6L Duramax LBZ and LMM applications. Fitment: 2006, 2007, 2008, 2009, 2010 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LBZ/LMM Notes: Compatible with LBZ and LMM Duramax engines Fits 2006-2010 GM 2500HD and 3500HD models Works with stock or PPE lower intake manifold No additional intake manifold required Designed to address factory boost leak issues Retains factory intake air temperature sensor Ensure proper O-ring seating during installation All hardware and gaskets included in kit Direct replacement for factory bridge manifold Verify OEM part numbers before purchase Install Instructions