BorgWarner EFR 7163 (B1) ball-bearing turbocharger for motorsport and high-output street builds making roughly 225-600 hp. Pairs a 71mm forged-milled extended-tip compressor (57mm inducer, 64 trim) with a low-inertia 63mm Gamma-Ti turbine in a stainless investment-cast V-band turbine housing (0.85 A/R) with an integrated VOF wastegate. Military-grade dual ceramic ball-bearing assembly in a water-cooled aluminum center housing.
| Type | EFR 7163 (B1) ball-bearing turbocharger |
| Compressor | 71mm FMW (57mm inducer, 64 trim) |
| Turbine | 63mm Gamma-Ti, low inertia |
| Turbine Housing | V-band, 0.85 A/R, VOF internal wastegate |
| Bearing | Dual ceramic ball, water-cooled |
| Rating | ~225-600 hp |
| Part Number | 11639880006 |
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