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Unleash Wehrli 01-04 Chevrolet Duramax Lb7 S300/s400 Single Turbo 3in Y-bridge Kit Premium Build [02wCFtlb]

$52.99 $169.99 -69%

Wehrli Model WCF100615***BRIDGE ASSEMBLY ONLY***3" High Flow Y-Bridge for custom build racing applications only. Bolts to OEM intake runners. 3" Bead Roll Connection at inlet. 14 ga Aluminum neck and TIG welded CNC machined billet aluminum center sec

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Unleash Wehrli 01-04 Chevrolet Duramax Lb7 S300/s400 Single Turbo 3in Y-bridge Kit Premium Build [02wCFtlb]

Wehrli Model WCF100615

***BRIDGE ASSEMBLY ONLY***

3" High Flow Y-Bridge for custom build racing applications only. Bolts 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. Raw finish ready for polishing or painting standard. Custom Color Powder Coat finishes are available as an optional upgrade and carry additional lead time.

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 race engines to help them breathe more efficiently.

3" High Flow Y-Bridge for custom build racing applications
- CNC Machined Billet Aluminum Center Section and Flanges
- TIG Welded Construction
- Includes Bungs for MAP sensor and 1/8" NPT Accessory
- Bolts to OEM intake runners using existing factory hardware and seals
- FPRV Block Off Kit
- Raw Aluminum Finish Standard
- Optional Custom Color Powder Coat Finishes Available for Additional Charge
- Made in USA

INCLUDES FPRV BLOCK OFF KIT TO ALLOW CLEARANCE OF LARGER BRIDGE TO FUEL PRESSURE DISTRIBUTION BLOCK

***NOTE: Raw finish selection will require some type of finish / sealant to prevent oxidation***

What Our Customers Say

January 28, 2026

Absolutely no complaints!

A great item. And it works so very, very, very, very well.

- Llywelyn C..

January 28, 2026

Absolutely no complaints!

A great item that is very, very, very well made.

- Iorwerth S..

January 28, 2026

Absolutely no complaints!

A fantastic tool with a very, very premium feel.

- Galen B..

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