BorgWarner Airwerks S139 S1BG - Mic Turbo
BorgWarner Airwerks S139 S1BG - Mic Turbo


BorgWarner Airwerks S139 S1BG

Regular price$954.77
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Airwerks turbochargers are designed for the competitive motorsports market as well as drivers retrofitting a naturally aspirated engine or looking for a little more performance from a factory turbocharged car.

Engineered specifically for drag racing, pulling and road racing, AirWerks turbochargers have earned a reputation as robust, brute-force induction systems. Looking for a no-frills replacement? Want to upgrade your turbocharger? Working with limited space? BorgWarner’s AirWerks turbochargers are the perfect go-to product for many applications.

With a twin hydrodynamic journal bearing design, AirWerks turbochargers feature an effective high-pressure ratio compressor stage, extended-tip technology and a high-efficiency turbine stage. The configuration provides ultra-fast response and more than 70 PSI of boost. 


Part Type: Turbocharger

Manufacturer: BorgWarner

Turbo Type: S1BG

Turbo Model: S139


  • 120-320HP
  • Twin hydrodynamic journal bearings
  • Integrated wastegate assembly
  • Adjustable compressor and turbine housing orientation
  • Bearing Housing Material: Cast Iron
  • Turbine Housing A/R: 0.46 or 0.61 T3


Comp Wheel Inducer (in): 1.55 (39.32mm)
Comp Wheel OD (in): 2.08 (52.91mm)
Turbine Wheel Exducer (in): 1.80 (45.73)
Turbine Wheel OD (in): 2.08 (52.92mm)



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If you are looking for a true turbo specialist, give these guys a call. Highly recommend them!
Miguel Navarro (Miguelito)
Excellent service, fast turnaround times, very professional. I will continue doing business with them.
Tiffany Porter
Saved me the money and headache of buying a new turbo kit and the turn around time to rebuild was extremely fast
Konstantine Farris