SKU: 11587105001 | UPC: 840232701890
BorgWarner Super Core EFR B1 6758 Turbocharger CHRA
The BorgWarner Super Core EFR B1 6758 is the rotating core assembly from the high-performance EFR 6758 turbo series built for engines producing 300 to 600 horsepower. This dual ball bearing CHRA fits custom turbo setups on vehicles like Mitsubishi Lancer Evolution Subaru Impreza WRX STI Nissan 240SX and Volkswagen platforms when paired with matching EFR housings. It delivers rapid spool-up high airflow efficiency and reliable power for street and track use.
Key Features
- Dual Ceramic Ball Bearings: Reduces friction for spool times under 3000 RPM on 2.0L engines and supports 150000+ miles of service
- Gamma-Ti Compressor Wheel 67/88mm: Flows up to 56 lb/min with 72% peak efficiency and extended map width for part-throttle response
- Inconel Turbine Wheel 58/49mm: Survives 1050°C EGTs with 71 trim for quick exhaust energy conversion
- Machined Speed Sensor Port: Enables real-time RPM monitoring for precise tuning and overboost protection
- Pre-Installed Oil Restrictor: Regulates feed pressure to safeguard bearings during install and operation
Product Notes
- Super Core only requires separate EFR 6758 compressor and turbine housings for complete turbo
- Fully assembled balanced and ready for housing installation
- 9 lbs product weight securely packaged for damage-free delivery
Installation Notes
- Professional installation recommended.
- Requires -4AN oil feed -10AN drain lines with 40-80 PSI regulated pressure
- Compatible with T3 divided .63/.85 A/R or V-band .85 turbine housings
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2005 | Mitsubishi | Lancer | Evolution VIII |
| 2006-2007 | Mitsubishi | Lancer | Evolution IX MR |
| 2008-2015 | Mitsubishi | Lancer | Evolution X MR GSR Ralliart |
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2021 | Subaru | Impreza | STI |
| 1995-1998 | Nissan | 240SX | S14 |
| 1999-2005 | Nissan | Silvia | S15 SR20DET |
| 1997-2005 | Volkswagen | Golf | 1.8T MK4 |
Why Choose BorgWarner?
- Supplies OEM turbos to Ford GM and other global automakers
- Proven in NHRA World Rally and endurance racing
- Engineered with aerospace-grade materials for consistent dyno results
Frequently Asked Questions
- Q: Does this super core bolt directly to my stock turbo manifold?
A: No it needs compatible EFR 6758 turbine housing and custom or adapter manifold for your engine setup - Q: What materials are used in construction?
A: Gamma Titanium compressor wheel Inconel turbine wheel and 718 center housing for heat resistance and strength - Q: What warranty coverage applies?
A: 1-year unlimited mileage warranty when installed by certified shop with proper oiling system
Shipping & Handling
- Method: UPS or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Foam-lined box 14 x 12 x 12 inches
- Weight: 9 lbs product 12 lbs shipping
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