2017-2026 Duramax High Flow Y-Bridge Kit (WCF100171)

High-flow Y-bridge kit for the 2017-2026 L5P Duramax. The factory upper intake limits how much charge air reaches the heads, and this cast aluminum bridge flows 33% more air than the OEM piece while splitting it evenly between both cylinder banks. The ports are shaped to help keep oil and soot off the MAP sensors, a common source of trouble on the L5P.

No tuning is required and it is emissions compatible, so it works as a standalone upgrade on a stock truck and as the foundation for a bigger build with upgraded turbos and custom tuning. Expect sharper throttle response, quicker spool and lower EGTs when towing. Powder coated in your choice of colour.

Part Number: WCF100171

• High-flow cast aluminum Y-bridge (upper intake manifold)
• 33% more airflow than OEM: 841 CFM vs 632 CFM on WC Fab's flow bench
• Splits charge air evenly between both cylinder heads
• MAP sensor ports designed to keep oil and soot off the sensors
• Emissions compatible, no tuning required
• Includes gaskets, O-ring seals, hose, clamps and mounting hardware
• Custom powder coat finish
• Made in USA

WC Fab does not ship this part to California.

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