BorgWarner Turbo EFR B2 8374 0.92 a/r VTF WG

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