SKU: 179388 | UPC: 840232704730
BorgWarner Turbo EFR B1 6758 0.64 A/R V-Band Internal Wastegate
BorgWarner EFR 6758 turbocharger features a compact design with T4 twin-scroll 0.64 A/R turbine housing V-band inlet and outlet plus integrated internal wastegate for precise boost control. It suits custom manifolds on 1.8L to 3.5L four and six-cylinder engines targeting 300 to 575 horsepower. Expect fast spool-up under 3000 RPM and efficient airflow up to 44 lbs/min thanks to advanced aerodynamics.
Key Features
- Dual Ball Bearing Cartridge: Reduces friction for spool times as low as 2350 RPM and supports 160000 RPM operation with oil or water cooling
- Gamma-Ti Compressor Wheel: 67mm inducer 84mm exducer forged milled billet design flows 44 lbs/min with 76% peak efficiency in ported S400 shroud
- Inconel Turbine Wheel: 58mm exducer high-flow Mar-M 247 material handles 1050C EGT for sustained high boost durability
- T4 Twin-Scroll 0.64 A/R Housing: V-band flanges simplify installs divided scroll preserves pulse energy for low-end torque
- Integrated Wastegate: Internal actuator with preload adjustment holds boost to 2.5 bar factory actuator upgradable for higher levels
Product Notes
- Requires T4 twin-scroll manifold V-band turbine inlet 3in compressor inlet 2in hose outlet
- Use synthetic oil and monitor EGT during break-in first 500 miles
- Standard ground shipping due to 22 lb weight secure packaging prevents damage
Installation Notes
- Professional installation recommended.
- Match V-band clamps torque to 8-10 ft-lbs use anti-seize on studs
- Compatible with T4 divided flange manifolds oil feed M12x1.25 restricted to 0.040in water ports M14x1.5
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Various | 1.8L-3.5L Performance Builds | 300-575 HP Custom Turbo Setups |
| 2006-2021 | Subaru | Impreza WRX | STI |
| 2008-2021 | Honda | Civic | Si K20 |
| 2013-2020 | Volkswagen | Golf | GTI 2.0T |
| 2006-2015 | BMW | 3 Series | N54 335i |
Why Choose BorgWarner?
- Proven in OE and racing with millions of turbos produced annually
- Investment cast 316 stainless housings resist corrosion and cracking
- Engineered for 160k RPM balance tested to aerospace standards
Frequently Asked Questions
- Q: What manifolds does this turbo fit
A: Bolts to T4 divided twin-scroll flanges with V-band turbine inlet common in aftermarket headers for Subaru EJ Volkswagen EA888 Honda K BMW N20/N54 - Q: What materials are used in construction
A: Gamma-Ti compressor wheel Inconel turbine wheel Ni-Resist compressor housing 316SS turbine housing dual ceramic hybrid ball bearings - Q: What is the warranty and support
A: 12-month unlimited mileage warranty when installed by certified shop includes technical support and compressor maps online
Shipping & Handling
- Method: Standard ground freight
- Availability: In stock – ships same or next business day
- Packaging: Original BorgWarner box 16in x 16in x 16in
- Weight: 22 lbs shipping
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