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2004.5-2005 LLY Duramax Y-Bridge Kit

-3" Fabricated Y-Bridge
-3" Passenger Side Inter Cooler Pipe
-Silicone Boots
-T-Bolt Clamps
-5/8" Heater Hose
-Powder Coating
Availability: 40-50 Business Day Lead Time
Shipping: This Product cannot ship to the state of California
Pricing: $739.00
5 5 1

Customize Your Item

- Model Year -
 * required
- Powder Coating -
 * required
- 3" Driver Side Intercooler Pipe -
 * required


The LLY 3" Y-Bridge Kit is an upgraded high flow intake kit for the 2004.5-2005 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 and 3" high flow intercooler pipe which compliments the y-bridge to offer a full 3" tract from intercooler to the engine. The 3" Y-Bridge (Bridge only, not the inter cooler pipe) will work in conjunction with our S400 over stock Twin Turbo Kit if you decide to upgrade in the future.


NOTE: Does not fit with Banks Power or S&B Aftermarket Intakes

NOTE: WILL NOT FIT WITH A BANKS INTERCOOLER. If you have a banks intercooler use Y-bridge kit WCF100865.

Product Notes

NOTE: Does not fit with Banks Power Aftermarket Intakes.



Shipping Information

  • Item Requires Shipping
  • 12.0 lbs.
  • W16.0000” x H10.0000” x L32.0000”
  • This Product cannot ship to the state of California

Customer Reviews

Comment Total Reviews (1)

Lly duramax ybridge
  • Currently 5/5 Stars

Reviewed by:

Product ownership: Less than 1 week

Purchased from: Wehrli Custom Fabrication - WCFab

Just received my ybridge kit and I'm beyond happy the quality is unbelievable I would suggest getting this for your duramax. Again thank you wcfab for making top notch parts for our trucks

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