Bridge Manifold EGR/Intake to LBZ Runners (Black)

Features:

• High-strength A356.0-T6 aluminum construction
• Precision cast for consistent durability
• 32% larger outlets improve airflow
• Increases intake efficiency and performance
• Improved heat management under load
• Bolt-on intake tube prevents boost leaks
• Integrated O-ring seal enhances reliability
• Direct bolt-on installation design
• Includes all required hardware and gaskets
• Replaces restrictive factory bridge manifold
• Designed for 6.6L Duramax LLY engines
• OEM-compatible fit and connections

Unlock The Airflow Your Duramax Has Been Missing All Along

If you have spent any time around LLY Duramax trucks, you already know the factory bridge manifold leaves a lot on the table. This PPE high-flow intake bridge steps in with a noticeable upgrade that brings your engine to life the moment you get on the throttle. The larger 32 percent outlet design allows more air to move freely, which helps your truck breathe easier under load and respond quicker when you need power. Additionally, the solid A356.0-T6 aluminum construction gives you confidence that this is not just a performance upgrade but a long-term solution. One of the most frustrating issues with the stock setup is boost leaks, and PPE addresses that directly by bolting the intake tube to the manifold and sealing it with an O-ring. That added connection makes a real difference when you are towing, daily driving, or pushing your truck harder than stock. Installation stays straightforward, so you can get back on the road without a drawn-out project. It is the kind of upgrade that feels right at home whether your truck works for a living or just needs to perform like it should have from the start.

Engineered Airflow And Strength Come Together For Reliable Performance Gains

Taking a closer look at the design, this bridge manifold is built with precision casting using permanent steel molds to ensure consistent strength and fitment. The A356.0-T6 heat-treated aluminum alloy is known for its durability and resistance to heat, which helps maintain performance even during demanding driving conditions. Furthermore, the increased outlet size improves volumetric efficiency by allowing a greater volume of air into the intake runners, supporting better combustion and overall engine performance. The integrated design that bolts the intake tube directly to the manifold eliminates a common weak point found in the factory setup. This mechanical connection, paired with a proper O-ring seal, significantly reduces the chance of boost leaks that can rob power and efficiency. The kit also includes all necessary hardware along with upper and lower gaskets, which simplifies the installation process and ensures a proper seal from the start. It is important to note that the larger outlet design requires a compatible lower intake manifold, which allows the system to perform as intended. Altogether, this setup delivers a well-balanced combination of airflow improvement, structural integrity, and dependable sealing for the 2004.5-2005 GM 6.6L Duramax LLY platform.

Fitment: 2004.5, 2005 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LLY

Notes:

• Requires PPE lower intake manifold for installation
• Not compatible with stock lower intake manifold
• Designed specifically for LLY Duramax engines
• Fits 2004.5-2005 GM 2500HD and 3500HD models
• Larger outlets require supporting airflow upgrades
• Professional installation recommended for best results
• Ensure proper torque on all mounting hardware
• Check boost connections during installation
• Intended to replace restrictive factory bridge manifold
• Verify part numbers before purchase

Install Instructions