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LBZ/LMM Y-Bridge Kit

-3" Fabricated Y-Bridge
-3" Passenger Side Inter Cooler Pipe
-Silicone Boot
-T-Bolt Clamps
-5/8" Heater Hose
-Map Sensor Seal
-Y-Bridge Flange Gaskets
-Powder Coating
Availability: In Stock
Shipping: This Product cannot ship to the state of California
Pricing: $675.00

Customize Your Item

- Model Year -
 * required
- Powder Coating -
 * required
- 3" Driver Side Intercooler Pipe -
 * required
- PCV Reroute Kit -
 * required
- Up Pipe(s) -
 * required


The LBZ/LMM 3" Y-Bridge Kit is an upgraded high flow intake kit for the 2006-2010 Duramax. The factory Y-bridge is a poorly designed two piece bridge that is prone to blowing apart under boost and creating poor drivability and excessive smoke. This is a one piece fabricated 3" bridge with a heavy duty machined bead roll on the end so the pipe cannot deform when the t-bolt clamp is tightened. This kit allows you to remove the EGR system for race use only. A 3" high flow inter cooler pipe compliments the y-bridge to offer a full 3" tract from inter cooler to engine. This 3" Y-Bridge kit will work in conjunction with our S400 over stock Twin Turbo Kit if you decide to upgrade in the future. 2010 LMM and some 2009 will require Map sensor Seal which we include in the kit.

Product Notes

-For off road competition use only
-LB7 passenger side up pipe or our 2" Stainless up Pipe kit will need to be purchased separately to fully remove the EGR.


Shipping Information

  • Item Requires Shipping
  • 13.0 lbs.
  • W12.0000” x H10.0000” x L32.0000”
  • This Product cannot ship to the state of California

Customer Reviews

Comment Total Reviews (1)

Excellent product, just bought a second one.
  • Currently 5/5 Stars

Reviewed by: Derrick10/17/2017 01:49AM

Product ownership: Less than 1 year

Not purchased from: Wehrli Custom Fabrication

I first bought one for my truck, my dad drove it and liked it so much I just bought him one. It's very high quality, looking at this Y-bridge vs the factory Y-bridge it's a huge increase in air flow. On top of that the powder coating looks awesome under the hood. If you're going to buy a Y-bridge kit it should be this one, if I had a third LBZ would buy a third.

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