-24%
BorgWarner Turbo EFR B2 8374 1.05 a/r VTF - Black Ops Auto Works
Click to zoom in

BorgWarner Turbo EFR B2 8374 1.05 a/r VTF

BorgWarner
BWA179393
840232705188
Turbochargers
5 Units In Stock - Ships Next Business Day
$ 4,417.95 $ 3,355.67
$ 3,355.67

SKU: 179393 | UPC: 840232705188

BorgWarner Turbo EFR B2 8374 1.05 a/r VTF | 225-550 HP Performance Turbocharger

The BorgWarner EFR B2 8374 1.05 A/R VTF turbocharger delivers high airflow and fast response for demanding performance builds. It supports engines from 1.8L to 3.0L producing 225 to 550 horsepower, ideal for Subaru WRX and STI, Volkswagen Golf R, Mazdaspeed3, and custom setups. Advanced dual ball bearing design ensures reliable boost with minimal lag across the powerband.

Key Features

  • Dual Ceramic Ball Bearings: Reduces friction for spool-up under 2000 RPM and supports over 200,000 RPM operation
  • 57/71mm Billet Compressor Wheel: Flows 57 lb/min air for strong mid-range torque and top-end power without compressor surge
  • 67mm Gamma-Ti Turbine Wheel: Resists 1050C exhaust temperatures for long life in high-heat conditions
  • 1.05 A/R Divided V-Band T4 Housing: Provides balanced spool time and exhaust flow for street and track use
  • Water-Cooled CHRA with Speed Sensor Port: Enables precise monitoring and cooling for consistent performance

Product Notes

  • Requires oil and water lines for lubrication and cooling during operation
  • Pair with proper tuning for safe boost levels up to 550 HP
  • Rebuildable SuperCore design allows field servicing

Installation Notes

  • Professional installation recommended.
  • Needs T4 divided exhaust manifold and V-band compatible downpipe
  • Includes V-band clamps, gaskets, and hardware for turbine housing

This Part Fits

Year Make Model Submodel
2002-2021 Subaru Impreza WRX
2004-2021 Subaru Impreza STI
2015-2021 Volkswagen Golf R / GTI
2007-2009 Mazda 3 Mazdaspeed3
2006-2013 Audi A4 2.0T Quattro
Universal - Custom Builds 1.8-3.0L Engines

Why Choose BorgWarner?

  • Leads OEM turbo production for millions of vehicles worldwide
  • EFR series powers wins in Formula Drift and rally racing
  • Investment-cast housings and billet components ensure precision fit

Frequently Asked Questions

  • Q: Is direct bolt-on fitment available for my vehicle?
    A: Universal design fits with custom T4 manifold, intake piping, and downpipe. Popular for Subaru EJ25, VW 2.0T, and similar swaps
  • Q: What materials are used in construction?
    A: Nickel-chrome compressor housing, 310 stainless steel turbine housing, Gamma-Ti turbine wheel, and billet aluminum compressor wheel
  • Q: What warranty coverage applies?
    A: 12-month unlimited mileage warranty from BorgWarner when installed and maintained correctly

Shipping & Handling

  • Method: Standard ground freight
  • Availability: In stock - ships same or next business day
  • Packaging: Secure double-walled box 16 x 16 x 16 inches
  • Weight: 20 lbs product / 25 lbs shipping

Request For Information

Have questions about BorgWarner Turbo EFR B2 8374 1.05 a/r VTF? Fill out the form below and we'll get back to you by the next business day.
BorgWarner

BorgWarner

BorgWarner turbochargers and turbo components are stocked at Black Ops Auto Works for LS, Coyote, 2JZ, EJ, K-series, Audi Volkswagen, Cummins, Power Stroke, and Duramax builds. Shop EFR turbochargers, S200, S300, S400 units, replacement turbos, SuperCore assemblies, cartridges, turbine housings, compressor covers, wastegates, oil lines, V-band hardware, boost control parts, turbo blankets, charge pipes, intercoolers, and turbo manifolds built around real enthusiast applications. Black Ops Auto Works carries 122 BorgWarner SKUs across gasoline performance, diesel upgrades, replacement turbo, and supporting component categories. Use year, make, model, trim, engine, and drivetrain filters to confirm the correct part before ordering. What BorgWarner Covers EFR and S-Series Turbochargers BorgWarner EFR and S-Series offerings support compact import builds, V8 swaps, and high-output diesel applications. The catalog includes complete turbochargers, SuperCore assemblies, cartridges, turb...

View BorgWarner Products
Forced Induction

Forced Induction

Forced induction is the fastest way to add real power to an engine without adding displacement, and this collection covers the full range of turbocharger, supercharger, intercooler, and boost control hardware needed to build a reliable boosted platform. Whether you are running a factory turbo upgrade, swapping to a bigger frame turbocharger, adding a centrifugal or roots style supercharger, or dialing in a nitrous system for a quick shot of extra power, you will find the components here to build and support the setup correctly. Every part in this collection is organized by system type so you can move from a stock turbocharger to a properly supported forced induction build in one place. Intercoolers, wastegates, blow off valves, boost controllers, and water meth injection components are all included alongside the core turbo and supercharger hardware so the entire boost system can be sourced together. What This Category Covers This collection includes turbochargers, turbo kits, s...

View Forced Induction Products
Turbochargers

Turbochargers

Turbochargers parts and accessories are stocked at Black Ops Auto Works for LS swap, Coyote, 2JZ, Subaru EJ, Honda K series, Ford EcoBoost, Bronco and Ranger Raptor, Cummins, Duramax and Powerstroke diesel truck builds. Shop bolt on turbochargers, universal turbochargers, replacement turbos, upgraded turbos, compressor housings, turbine housings and turbo installation parts with vehicle specific fitment data for confident ordering. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 180 Turbochargers SKUs across bolt on turbos, universal turbos, diesel upgrades, compressor configurations, and supporting components. What This Turbochargers Collection Covers Bolt On and Universal Turbochargers This collection includes vehicle specific replacement and upgrade turbochargers plus universal units for fabricated builds. Select by engine, manifold flange, turbine housing, compressor size, f...

View Turbochargers Products
Turbochargers & Components

Turbochargers & Components

Turbochargers and turbo components for import, domestic, and European performance builds are stocked at Black Ops Auto Works. Shop complete turbochargers, turbo rebuild kits, wastegates, turbo manifolds, and turbo hardware for naturally aspirated conversions and turbo upgrades alike. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 565 turbocharger SKUs spanning complete units, rebuild kits, and supporting hardware. What This Category Covers The Turbochargers and Components category covers complete turbocharger units, upgraded drop-in turbos, turbo rebuild and repair kits, wastegates, and the supporting hardware needed to install or upgrade a turbocharger. Coverage spans stock-replacement turbos through big single and twin-turbo setups for serious horsepower goals. Categories Included Complete turbochargers, drop-in and hybrid turbo upgrades, turbo rebuild kits, cartridges, waste...

View Turbochargers & Components Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×