Product Description
BorgWarner 176811 S400 Exhaust Housing — 83mm, 1.10 A/R, T6 (Twin-Scroll)
BORGWARNER 176811 is a genuine AirWerks S400 turbine housing featuring an 83mm wheel fitment, 1.10 A/R, and a T6 twin-scroll inlet. It’s a go-to option for high-power S400 singles and atmospheric chargers in compound setups where top-end flow matters.
Key Specifications
- Frame: S400 / AirWerks
- Turbine Wheel Fitment: 83mm S400 (standard 83mm S4)
- A/R: 1.10
- Inlet: T6 twin-scroll
- Outlet: 5.75" Marmon (v-band style)
- Use Case: High-hp single turbo builds or low-pressure charger in S300/S400 compounds
Verify your turbine wheel size (83mm), manifold flange (T6), downpipe connection, and wastegate strategy before ordering.
Compatibility & Build Notes
- Pairs with popular S400 compressor builds (e.g., S464/S467/S472) for strong top-end power.
- Expect later spool than smaller A/R or T4 housings; reward is reduced drive pressure at higher flow.
- Ideal as the atmospheric charger housing in compound S300/S400 systems.
Helpful Add-Ons
- Fleece FPE-34856 S300/S400 Turbo Stud Kit
- CPP -12AN Oil Drain Kit (S300/S400)
- CPP S400 4.0" Compressor Discharge Elbow
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FAQ
Will 176811 fit my S400 turbine wheel?
It is designed for 83mm S400 turbine wheels. Confirm your wheel size and shaft/housing compatibility before purchase.
Is a T6 manifold required?
Yes. This housing has a T6 twin-scroll inlet. Most light-duty OEM setups are T3 or T4 and will need a matching T6 manifold.
What outlet does this use?
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It uses a 5.75" Marmon style outlet. Ensure your downpipe or adapter matches this connection.
Will this housing improve spool?
A 1.10 A/R T6 typically favors top-end flow over early spool. If you want quicker response, consider a smaller A/R, different turbine wheel/housing, or compounds.
Can CPP help spec a complete S400 setup?
Absolutely. We’ll help you match compressor, turbine wheel, manifold, wastegate, and piping for your power goals.
Why Buy BorgWarner from CPP Diesel
- Platform-specific guidance for Cummins, Powerstroke & Duramax
- Fast shipping with careful packaging
- From stock replacements to custom compound systems
- Phone & chat support from diesel pros
