Wehrli 11-16 Chevrolet 6.6L LML Duramax High Flow Y-Bridge Kit
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
The Wehrli High Flow Y-Bridge Kit replaces the restrictive factory plastic Y-bridge and charge-air connections on the 2011-2016 6.6L LML Duramax with mandrel-bent aluminum tubing for smoother, higher-volume airflow into the intake. Better flow into the heads helps lower intake air temperatures and supports more consistent power, especially on tuned and modified trucks.
- Direct replacement for the factory LML Y-bridge and passenger-side charge pipe
- Mandrel-bent aluminum construction for maximum flow and long-term durability
- Includes silicone couplers and clamps for a complete, sealed installation
- Available in a wide range of Wehrli powder-coat finishes
- Fits 2011-2016 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD 6.6L LML Duramax
This part fits the following vehicles:
| Years | Make & Model |
|---|---|
| 2011–2016 | Chevrolet Silverado 2500 HD |
| 2011–2016 | Chevrolet Silverado 3500 HD |
| 2011–2016 | GMC Sierra 2500 HD |
| 2011–2016 | GMC Sierra 3500 HD |
Fitment is listed by year, make and model. Some applications also depend on cab, bed, drivetrain or engine — if you are not sure, call 636-429-7020 or send us your vehicle details and we will confirm before you order.
