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BorgWarner Turbo EFR B2 8374 0.92 a/r VTF WG - Black Ops Auto Works
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BorgWarner Turbo EFR B2 8374 0.92 a/r VTF WG

BorgWarner
BWA179357
840232704464
Turbochargers
13 Units In Stock - Ships Next Business Day
$ 4,559.84 $ 3,476.53
$ 3,476.53

SKU: 179357 | UPC: 840232704464

BorgWarner Turbo EFR B2 8374 0.92 a/r VTF WG - Fits 2002-2021 Subaru WRX/STI, Evo, Mazdaspeed3

The BorgWarner EFR 8374 turbocharger delivers reliable power for 330-550 HP engines in performance applications. This Gen2 ball bearing unit with 0.92 A/R V-band turbine housing and integrated wastegate suits Subaru Impreza WRX/STI, Mitsubishi Lancer Evolution, Mazda3 Mazdaspeed3, and custom setups. It provides fast spool-up, broad powerband, and efficient airflow for street and track use.

Key Features

  • Dual Ceramic Ball Bearings: Gen2 cartridge cuts friction for spool under 3000 RPM and supports 150,000 mile durability
  • Gamma-Ti Turbine Wheel: 74.5/64.4 mm Inconel blade design resists 1050C heat with low inertia for responsive response
  • Forged Milled Compressor Wheel: 57.4/74 mm inducer/exducer 60 trim resists surge and flows 54 lb/min for full boost efficiency
  • Integrated Boost Solenoid: Factory boost control port enables precise pressure management without extra parts
  • V-Band Housings: T5 V-band inlet and 3" V-band outlet allow fast clamp connections and manifold adaptability

Product Notes

  • Use 1/8 NPT oil restrictor (0.028-0.040 inch) in feed line to prevent bearing washout
  • Water cooling recommended for longevity. M14x1.5 ports provided on CHRA
  • Fully assembled with speed sensor port. hardware like V-clamps sold separately

Installation Notes

  • Professional installation recommended.
  • Oil feed M14x1.5 dry sump style. drain -10AN minimum with catch can
  • V-band turbine inlet fits T5 divided flanges. verify manifold clearance

This Part Fits

Year Make Model Submodel
2002-2021 Subaru Impreza WRX / STI
2003-2006 Mitsubishi Lancer Evolution VIII / IX
2007-2009 Mazda 3 Mazdaspeed3
2006-2013 Volkswagen Golf / GTI 2.0T FSI / R
1993-2002 Mazda RX-7 FD 13B-REW

Why Choose BorgWarner?

  • Direct OEM supplier for Ford EcoBoost and VW TSI engines worldwide
  • EFR line proven in NHRA Pro Stock and World Rally Championship
  • Investment cast 310SS housings with CNC machining for exact tolerances

Frequently Asked Questions

  • Q: Will this bolt up to my Subaru STI EJ257?
    A: Universal design works with STI TD05/TD06 adapter kits from Full Race or similar. check hood clearance and downpipe fit
  • Q: What materials are used in construction?
    A: Compressor cover Ni-Resist for heat, turbine housing NiAl plated 310SS, CHRA investment cast stainless
  • Q: What warranty coverage applies?
    A: 24-month unlimited mileage limited warranty when installed by certified shop with proper oiling

Shipping & Handling

  • Method: Standard Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Double-walled cardboard box 16in L x 14in W x 14in H
  • Weight: 17.6 lbs product / 22 lbs shipping

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