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The BorgWarner AirWerks SX S400 turbine housing T4 with A/R 1.00 (83/74mm) Twin Scroll is the twin-scroll exhaust housing specified for S400-series turbochargers. It provides the twin-scroll configuration with the 83/74mm pairing and A/R 1.00 geometry listed in the description, intended for use when assembling or configuring an AirWerks S400 turbo to that twin-scroll specification.
BorgWarner Turbine Housing SX S400 T4 A/R 1.00 83/74mm Twin Scroll
