SKU: 11587105002 | UPC: 840232701982
BorgWarner Super Core EFR B1 6258 Turbocharger Assembly
The BorgWarner Super Core EFR B1 6258 powers high-performance turbocharger builds with its complete rotating assembly including CHRA compressor wheel and turbine wheel. Designed for universal custom applications on 2.0L to 3.0L engines pair it with matching EFR housings for seamless integration. Expect rapid boost response and airflow up to 44 lbs/min supporting 225 to 450 HP levels.
Key Features
- Dual Ball Bearing Cartridge: Cuts friction for spool times 30% faster than journal bearings ensuring instant throttle response
- Gamma-Ti Turbine Wheel: 58mm exducer withstands 1050C+ temperatures with low inertia for reliable high-RPM power
- 62mm Compressor Wheel: Extended tip design flows 44 lbs/min with anti-surge margins for consistent boost across RPM range
- Modular Super Core Design: 47mm compressor inducer pairs with A/R .64 .85 compressor and T3 T4 turbine housings
- Proven Durability: Investment cast wheels and high-flow aerodynamics handle racing demands without failure
Product Notes
- Super Core only housings flanges and wastegate sold separately
- Assembled and balanced to OEM standards ready for housing installation
- Special order item lead time varies confirm stock before ordering
Installation Notes
- Professional installation recommended.
- Match with EFR 6258 compressor housing A/R .64 or .85 and turbine housing T3 or T4 divided
- Uses standard V-band clamps and 7cm^2 or 10cm^2 wastegate options
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Universal | Custom Builds | 2.0L-3.0L Engines EFR 6258 |
Why Choose BorgWarner?
- Supplies OEM turbos to global automakers
- Dominates motorsports with championship wins
- Engineers in Germany for precision reliability
Frequently Asked Questions
- Q: Is this a complete turbocharger?
A: No this Super Core includes CHRA wheels and shaft add separate compressor and turbine housings for full assembly - Q: What material is the turbine wheel?
A: Gamma-Ti alloy for extreme heat resistance and reduced weight compared to Inconel - Q: What is the warranty?
A: 1 year limited warranty covers defects in materials and workmanship under normal use
Shipping & Handling
- Method: UPS Ground freight class 80
- Availability: Special order ships within 2-3 business days
- Packaging: OEM box 13 x 13 x 13 inches
- Weight: 11 lbs net 15 lbs shipping
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