The BorgWarner AirWerks SX S200 T4 turbine housing specified with a 1.09 A/R and 61mm inlet adapts SX S200 turbine hardware to a T4 exhaust flange. The twin-volute arrangement directs exhaust pulses to influence transient response and midrange flow. Choose this housing when a slightly over-unity A/R is desired for SX S200 setups requiring a T4 outlet while maintaining twin-scroll characteristics.
BorgWarner Turbine Housing SX S200 T4 A/R 1.09 61mm