Product Description
BORGWARNER 177209 S300SX3 EXHAUST HOUSING – 1.00 A/R, 68MM, T4
Unlock proven S300 performance with the BorgWarner 177209 twin-scroll T4 exhaust housing. This genuine AirWerks S300SX3 piece uses a 1.00 A/R volute sized for the 68mm turbine wheel, delivering crisp mid-range response with strong top-end flow in single or compound S300 builds. Precision cast, durable, and track-tested — it’s a go-to upgrade for Cummins, Power Stroke, and Duramax swaps where reliability and repeatable results matter.
BorgWarner 177209, S300SX3 housing 1.00 A/R, T4 twin scroll divided volute, 68mm turbine wheel, AirWerks S300 SX-E, 4.21" Marmon V-band outlet, CPP Diesel BorgWarner parts, S300 exhaust housing upgrade
Fitment Details
- Turbo Series: BorgWarner AirWerks S300 / S300SX3 / SX-E (76/68mm turbine wheel)
- Inlet: T4 twin-scroll (divided)
- Outlet: 4.21" Marmon V-band (verify downpipe/clamp)
- Use Cases: Street/strip singles, towing builds, and atmospheric chargers in compound S300 setups
Cross-Reference / Alternatives (BorgWarner on CPP Diesel)
- BORGWARNER 177210 – S300SX3 0.88 A/R, 68MM, T4
- BORGWARNER 177207 – S300SX3 0.91 A/R, 68MM, T4
- BORGWARNER 177208 – S300SX3 0.91 A/R, 74MM, T4 (Divided)
- BORGWARNER 177211 – S300SX3 0.88 A/R, T4 (Open Volute)
- BORGWARNER 179905 – S300SX3 1.00 A/R, 74MM, T4
Why Buy from CPP Diesel
- Genuine BorgWarner components with expert S300/SX-E sizing support
- Fast, free shipping and careful packaging
- Diesel-specialist product guidance for singles or compounds
FAQ
What turbos does the 177209 housing fit?
It’s designed for BorgWarner S300/S300SX3/SX-E units using the 76/68mm turbine wheel. Confirm your wheel size before ordering.
How does 1.00 A/R compare to 0.91 or 1.10?
1.00 A/R balances spool and top-end. It’s typically quicker than 1.10 with better top-end than 0.91 for many mid- to high-HP builds.
What flange and outlet are used?
T4 divided (twin-scroll) inlet and a 4.21" Marmon V-band outlet. Verify your manifold flange and downpipe clamp.
Is this a complete turbocharger?
No — this listing is the turbine (exhaust) housing only.
Do I need tuning after install?
Many builds benefit from recalibrated fueling/boost control. Consult your tuner for your setup.
Specifications for BORG WARNER 177209
| Attribute | Value |
|---|---|
| Turbo Series | AirWerks S300 / S300SX3 / SX-E (76/68mm turbine) |
| A/R & Inlet | 1.00 A/R, T4 twin-scroll (divided) |
| Outlet | 4.21" Marmon V-band |
| Part Number | 177209 |
| UPC | 840232708769 |
| GTIN | 0840232708769 |
| Cross Reference | 177210 (0.88 A/R, 68mm, T4) | 177207 (0.91 A/R, 68mm, T4) | 177208 (0.91 A/R, 74mm, T4 Divided) | 177211 (0.88 A/R, T4 Open) | 179905 (1.00 A/R, 74mm, T4) |
| E-Codes | Not specified by manufacturer |
| Shipping Info | Free Shipping; typical box approx. 11" x 11" x 11" (verify at checkout) |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
