Wehrli 11-16 Chevrolet 6.6L LML Duramax High Flow Y-Bridge Kit - Candy Red

This LML Y-Bridge Kit is an upgraded high flow intake kit for the 2011-2016 6.6L Duramax diesel engine which replaces the OEM upper intake manifold supplying air to the engine intake runners and cylinder heads. The OEM Y-bridge for these trucks is a restrictive part that creates a bottle neck in the air intake tract and limits engine performance potential. This kit improves air flow by 36% using a precision CNC machined cast aluminum high flow bridge which provides maximum airflow volume for the available space. This means you get the most out of your engine in terms of performance and efficiency. Includes a unique, 20% larger than stock, 3" fabricated aluminum upper crossover intercooler pipe that allows you to take full advantage of the larger inlet diameter of this bridge. Incorporates factory intake air heater grid for superior cold weather performance. Billet resonator plate eliminates the stock plastic resonator for improved engine bay appearance and more aggressive turbo and engine sound. Compatible with OEM throttle valve, EGR controls, and lower passenger side Intercooler Pipe. Add WCFab 3.5" High Flow Intercooler Pipe WCF100682 to get the most out of this kit. Finished in your choice of custom powder colors. This product is compatible with stock trucks requiring no additional modifications, upgrades, or tuning for installation. Pairs best with emissions compliant tuning and drop in turbochargers for optimum performance gains. Supersedes WCF100607. Replaces the following GM part numbers: 12658233

Additional Information

Wehrli Custom Fabrication 2011-2016 LML Duramax High Flow Y-Bridge Kit, Candy Red

Part Type

Engine Intake Manifold

• Compatible with stock trucks, no other modifications or upgrades necessary!
• Connects to factory throttle valve, grid heater, EGR and stock intake runners
• Durable Custom Powder Coat Finish
• Eliminates restrictions and known failure points in OEM design
• Flows 36% better than stock
• Includes 3" High Flow Upper Intercooler Crossover Pipe
• Includes Billet Turbo Resonator Plate for OEM Intake Horn
• Made in USA
• NO Tuning required, bolt on!
• Y-Bridge O-Ring Flange Seals

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Reference Information