BorgWarner AirWerks S400SX4 (S471) turbocharger, a large journal-bearing unit for diesel and high-horsepower performance builds flowing roughly 500-1050 hp. Pairs a 71.4mm extended-tip compressor (88mm exducer) with a 96mm turbine in a T6 1.32 A/R twin-scroll turbine housing with a V-band 4.21in outlet, on twin hydrodynamic journal bearings; compressor and turbine housings are clockable.
| Type | S400SX4 (S471) turbocharger |
| Compressor | 71.4mm inducer / 88mm exducer, extended tip |
| Turbine | 96mm |
| Turbine Housing | T6 1.32 A/R twin-scroll, V-band outlet |
| Bearing | Twin hydrodynamic journal |
| Rating | ~500-1050 hp |
| Part Number | 171701 |
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