Product description
BorgWarner EFR 6758 Ball Bearing T25 Turbocharger 179388
The BorgWarner EFR 6758 is the most compact turbocharger in the ultra-efficient EFR lineup, designed for quick spool, outstanding response, and impressive power potential in a small package. Featuring a 67mm OD compressor with a 54mm inducer, the 6758 flows up to 44 lb/min, supporting up to 500 horsepower while maintaining a broad compressor map for strong performance even at high boost levels.
As the fastest-spooling EFR turbo, it’s perfectly suited for smaller displacement engines in both single-turbo and twin-turbo setups—offering exceptional drivability for autocross, rally, drift, road racing, and performance street builds.
Equipped with a low-inertia 58mm Gamma-Ti turbine wheel, the 6758 delivers lightning-quick response when paired with its Forged Milled (FMW) compressor wheel. The compact EFR compressor housing ensures excellent fitment in tight engine bays, making it an ideal choice for V6 twin-turbo or inline-four single-turbo applications.
Recommended Power Range: 260–500 HP (single) / 400–700+ HP (twin)
Bearing Type: Ceramic Ball Bearing
Cooling: Oil-cooled (Water cooling recommended but optional)
Key Features
Gamma-Ti turbine wheel for ultra-lightweight strength and fast spool
Extended Tip compressor technology for enhanced airflow and efficiency
Integrated Boost Control Solenoid Valve (BCSV) for simplified boost management
Forged Milled Compressor Wheel (FMW) for superior performance and durability
Built-in Compressor Recirculation Valve (CRV) to prevent compressor surge
Dual ceramic ball bearing system with a metal cage for long-lasting reliability
Speed sensor mounting provisions integrated into the compressor cover
Specifications
Horsepower Range: 250–500 HP
Turbo Frame Size: B1
Compressor Inducer: 54 mm
Compressor Wheel O.D.: 67 mm
Turbine Wheel O.D.: 58 mm
Compressor Outlet: Straight
Relevant Part Numbers
6758 V-Band Turbo
6758 T4 Turbo
Super Core: P/N 179375
Reference: BorgWarner EFR Technical Guide