SKU: 179375 | UPC: 840232704648
BorgWarner Super Core EFR B1 6758 Turbocharger Core Assembly
The BorgWarner Super Core EFR B1 6758 is the center rotating assembly for the EFR 6758 turbocharger series including compressor and turbine wheels with CHRA. It suits custom performance builds on 2.0L to 3.0L engines using B1 frame housings like T3 inlet and V-band or T4 outlet options. This core provides fast response low-end boost and high efficiency across 450 to 675 horsepower range.
Key Features
- Dual Ceramic Ball Bearings: Cuts friction for quicker spool-up and extended service life under high boost
- Forged Milled Compressor Wheel: 67mm inducer 87.7mm exducer Gamma-Ti design flows 58 lb/min for broad efficiency map
- Gamma Turbine Wheel: 66.1mm inducer 58mm exducer handles 55 lb/min exhaust with durable high-temp coating
- Oil and Water Cooled CHRA: Maintains stable temperatures in demanding street and track conditions
- B1 Frame Compatibility: Matches T3 0.64 A/R turbine housing V-band 0.85 A/R compressor covers and more
Product Notes
- Super core assembly only compressor and turbine housings required separately for complete turbo
- Build for racing or high-performance street use direct replacement for worn EFR 6758 cores
- Standard shipping applies no core charge or return required
Installation Notes
- Professional installation recommended.
- Assemble with matching BorgWarner EFR B1 housings and gaskets
- Compatible with standard turbo mounting hardware oil feed M12x1.5 water ports M14x1.5
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2021 | Subaru | Impreza | WRX STI |
| 1989-1998 | Nissan | 240SX | S13 S14 SR20DET |
| 1993-1998 | Toyota | Supra | 2JZ-GTE |
| 1990-2005 | Nissan | Skyline | R32 R33 R34 RB26DETT |
| 2006-2015 | Mitsubishi | Evolution | EV0 EVO X 4G63 4B11T |
| Universal | Chevrolet | LS Engine Swap | All |
Why Choose BorgWarner?
- Direct supplier to global automakers with decades of turbo expertise
- Track-proven in endurance racing and drag applications
- Engineered in Germany for precise balance and flow characteristics
Frequently Asked Questions
- Q: Does this super core fit specific vehicles?
A: Universal for custom builds fits popular platforms like Subaru WRX STI Nissan SR20DET Toyota 2JZ-GTE when paired with B1 housings - Q: What materials are used in construction?
A: Compressor wheel forged Gamma-Ti turbine wheel Inconel with Gamma blade coating CHRA investment cast stainless steel - Q: What warranty coverage applies?
A: 12 month no mileage limit warranty covers defects in materials and workmanship with proper installation
Shipping & Handling
- Method: Standard ground
- Availability: In stock – ships same or next business day
- Packaging: Secure foam insert double-wall box 12 x 10 x 8 inches
- Weight: 9.8 lbs
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