Free Shipping On Orders Over $99

Web Sales, Shop Service & Sales:

(309) 627-2500

Shopping Cart:

item - $0.00

You have no items in your shopping cart.

Subtotal: $0.00

WCF LML Y-Bridge Kit (w/driver side intercooler pipe & Sparkle Electric Blue powder coat)

More Views

Wehrli Custom Fabrication 3-Inch LML Y-Bridge Kit

Be the first to review this product

2011-2016 Duramax (LML)

Maximum number of characters: 7

* Required Fields



Ready to rule out the possibility of blowing out your factory Y-bridge under high boost? Wehrli Custom Fabrication’s 3-inch Y-bridge kit for the LML Duramax does just that. In addition to replacing the stock Y-bridge with a larger, more durable version, offering a 3-inch diameter cold side intercooler pipe eliminates EGR, and vastly improves airflow. A new turbo inlet and coolant bypass kit is also included.

Each kit is hand fabricated and pre-fitted to ensure proper final fitment. All tubing is TIG welded and all flanges are CNC machined; with O-ring seals where necessary for a leak free seal. Kits are powder coated in the color of your choice (see available color options above). Perhaps the best part about this LML Y-Bridge kit is that it will work in conjunction with the twin turbo and single turbo kits we offer (S300 or S400), so you won't have to replace it or start all over when you decide to make future upgrades. Note: non-factory turbo requires upgraded VGT clamp.

*Supplied passenger side intercooler pipe routes in factory location


Above Options Explained:

  • *Modified factory up-pipe option (above) makes this a 100% bolt on EGR delete kit. This selection includes a $100 core charge. Please return your core to: Randall's Performance, RR 5 Box 134, Gladstone, IL 61437.  Once we receive your up-pipe core, you will receive a refund. 
  • *Add even more flow and cooler EGT by adding a 3-inch driver side (hot-side) intercooler pipe (comes with boots, clamps, powder coating, and fits the stock turbo), provides a full 3-inch intake tract from turbo to engine;
  • *The PCV Reroute Kit that you may purchase along with this y-bridge kit only works with the complete y-bridge kit, single turbo kit, or twin turbo kit.
  • *Please include the model year so that we can build a kit specifically for your truck


Kit Includes:

  • *3-inch diameter fabricated Y-bridge assembly
  • *Turbo inlet
  • *3-inch diameter cold side intercooler pipe
  • *Coolant bypass kit
  • *High pressure rated silicone boots and clamps
  • *Powder coated the color of your choice



Powder Coat Color Options

WCF Candy Lime Green 3-inch Y-Bridge (2016 model Duramax)

Customer Reviews

Write Your Own Review

You're reviewing: Wehrli Custom Fabrication 3-Inch LML Y-Bridge Kit

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.