SKU: 11637105000 | UPC: 840232703153
BorgWarner Super Core EFR B1 7163 Turbocharger Assembly
The BorgWarner EFR 7163 B1 Super Core Assembly powers high-output turbo builds with its dual ceramic ball bearing CHRA, Gamma-Ti compressor wheel, and Inconel turbine wheel. This assembly supports 450-650 horsepower on 2.0L to 3.0L engines in vehicles like Subaru WRX STI and VW Golf R. Pair it with T3 or T4 turbine housings for custom setups delivering quick spool and massive airflow up to 65 lb/min.
Key Features
- Dual Ball Bearing CHRA: Provides low drag for spool times under 2000 RPM and handles 170,000 RPM speeds with extended durability.
- 67/82mm Gamma-Ti Compressor Wheel: Lightweight titanium alloy delivers 65 lb/min flow with 48mm extended tips for broad efficiency island.
- 66/63mm Inconel Turbine Wheel: Withstands 1050°C exhaust temps for reliable power in high-boost race applications.
- B1 Compressor Housing: Ported anti-surge design with integrated BOV outlet supports T3 or T4 turbine housings.
- Investment Cast Housings: Precision machined for leak-free seals and OEM-grade balance at factory.
Product Notes
- Super core requires separate turbine housing, oil feed/drain lines, and coolant lines for complete turbo build.
- Designed for competition use with high-octane fuel and proper tuning.
- Arrives pre-assembled and balanced, ready for housing installation.
Installation Notes
- Professional installation recommended.
- Uses -4AN oil feed and -10AN drain with 0.040-0.050″ clearance to avoid bearing wear.
- Compatible with T3 twin-scroll .63/.82 A/R or T4 divided .82/.92 A/R turbine housings.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2021 | Subaru | WRX STI | Base/Limited/Hatchback |
| 2003-2006 | Mitsubishi | Lancer Evolution | Evo VIII/IX |
| 2015-2021 | Volkswagen | Golf R | All |
| 2005-2009 | Volkswagen | Golf R32 | All |
| 2015-2020 | BMW | 3 Series | M3/F80 |
| 2016-2021 | BMW | 2 Series | M2 |
Why Choose BorgWarner?
- OE supplier to global automakers with proven motorsport wins in rally and drag.
- Every super core factory balanced to 0.5g/VGM specs for vibration-free operation.
- Engineered in the USA with racing-derived tech for consistent dyno results.
Frequently Asked Questions
- Q: What vehicles does the EFR 7163 B1 super core fit?
A: Universal for custom installs on Subaru WRX STI 2004-2021, Mitsubishi Evo VIII/IX, VW Golf R 2015+, BMW M3/M2 with matching T3/T4 turbine housing. - Q: What materials are used in the wheels?
A: Compressor wheel is Gamma-Ti for strength-to-weight advantage. turbine wheel is Inconel for extreme heat resistance up to 1050°C. - Q: What is the warranty and install requirements?
A: 12-month manufacturer defect warranty. Needs pro tuning, -4AN oil feed at 60-80psi, and water cooling for longevity.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Foam-protected box measuring 16 x 14 x 14 inches
- Weight: 12.5 lbs
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