Y-Bridge 01-04 GB

3" High Flow Y-Bridge for custom fabrication use. Not a direct OEM replacement. Does bolt to OEM intake runners. 3" Bead Roll Connection at inlet. 14 ga Aluminum neck and TIG welded CNC machined billet aluminum center section and flanges. Includes bungs for MAP sensor installation and 1/8" NPT accessory port. Gloss Black Powder Coat Finish. The factory LB7 Duramax Y-bridge is a significant restriction in the engine intake tract limiting the engine's efficiency and ability to make power when big air and fuel system modifications are in play. This kit provides a larger, better flowing, more direct path to the intake runners for high horsepower Duramax performance engines to help them breathe more efficiently.

Additional Information

Wehrli Custom Fab Y-Bridge, 3 in. for S300/S400 Single Turbo, 01-04 Duramax LB7, Gloss Black

Part Type

Engine Intake Manifold Kit

• CNC Machined Billet Aluminum Center Section and Flanges - TIG Welded Construction
• Gloss Black Powder Coat Finish
• Includes MAP Sensor Bung, Bracket & Seal, 1/8" NPT Accessory Port (e.g. boost), 3" Silicone Boot & Stainless Steel T-bolt Clamps, New O-Ring Flange Seals, and an FPRV Block Off Kit for Proper Clearance from Bridge to Fuel Distribution Block
• Made in USA
• NOTE: If running a turbo other than factory a minimum T4 pedestal height with an S300 is 5" and with an S400 is 6" for proper clearance to Y-bridge.

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Reference Information