BorgWarner AirWerks S400SX Turbo BorgWarner AirWerks S400SX Turbo BW part number 177288 Genuine BorgWarner AirWerks turbocharger Note: Currently, some compressor housings come without a logo! This is not a difference in quality! All components come directly from BW USA from the factory. AirWerks turbochargers from BorgWarner Turbo Systems are dedicated aftermarket turbos for the performance sector. Proven line-produced parts (mostly from Schwitzer Turbo) are being combined to deliver high end tuning and motorsports performance while maintaining an ideal price/performance ratio. performance rating: n.a compressor housing: n.a / n.a compressor wheel: inducer n.a / exducer n.a turbine housing: n.a / header flange n.a / n.a turbine wheel: inducer n.a / exducer n.a / external wastegate - dual hydrodynamic journal bearing - extended tip technology - Twinscroll turbine housing - adjustable orientation of compressor housing and turbine housing - compressor housing with anti-surge ports (High-Flow) Different A/R ratio? If you order an AirWerks turbocharger and wish to have a different A/R you have to order the corresponding turbine housing separately.