6.6L Duramax L5P High Flow | Y-Bridge 3.5 Inch | 2017-2024 GMC/Chevy
SKU: EP-YB-GM-L5P-DPF
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Product Description
Introduction
A 3.5" high-flow Y-bridge built for 2017–2024 6.6L Duramax L5P engines on aftermarket turbo setups. Once you push more air and fuel, the stock Y-bridge chokes the intake tract. This piece swaps it out to free up airflow and handle higher boost.
Compatibility
| Make | Model | Year | Engine |
|---|---|---|---|
| Chevrolet | Silverado 2500HD | 2017–2024 | 6.6L Duramax L5P |
| Chevrolet | Silverado 3500HD | 2017–2024 | 6.6L Duramax L5P |
| GMC | Sierra 2500HD | 2017–2024 | 6.6L Duramax L5P |
| GMC | Sierra 3500HD | 2017–2024 | 6.6L Duramax L5P |
Features
- 3.5" high-flow design that outflows the restrictive OEM unit
- TIG-welded 304 stainless steel
- Bead-rolled inlet to lock couplers in place
- Designed for aftermarket turbos and custom charge piping
- Mounts to OEM intake runners with the factory hardware and seals
- Bungs for the MAP sensor plus a 1/8" NPT port for boost, meth injection, or data logging
Technical Specifications
| Material | 304 Stainless Steel |
|---|---|
| Inlet Diameter | 3.5 inches |
| Construction | TIG welded |
| Sensor Ports | Factory MAP bung plus a 1/8" NPT accessory bung |
| Finish | Raw stainless |
Benefits
- Clears the stock intake bottleneck once air and fuel go up
- Backs higher boost and aggressive tunes
- More consistent flow under load
- Lowers the chance of couplers blowing off
- Holds up to extreme heat and race duty
Installation and Notes
- Mounts to OEM intake runners using the factory hardware and seals
- Needs custom fabrication, custom charge piping, and an aftermarket turbo
- Best suited to builds running an aftermarket turbo and charge piping
- Won't fit the factory turbo or OEM intercooler piping
- Race and off-road use only
Frequently Asked Questions
Is this a direct swap for the stock Y-bridge?
No. It's a performance part for custom builds and calls for custom fabrication, aftermarket intercooler piping, and usually custom tuning.
Does it fit the factory turbo?
No. Aftermarket turbo setups only.
Are sensor ports included?
Yes. You get bungs for the factory MAP sensor and a 1/8" NPT accessory port.
Do I need tuning?
Not for the install itself, but it's strongly recommended on aftermarket turbo setups.