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BorgWarner S400SX Turbine Housing - T4 Twin Scroll 1.00 A/R (83/74mm) - 177103

$520.53 $650.66
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BorgWarner S400SX Turbine Housing - T4 Twin Scroll 1.00 A/R (83/74mm) - 177103
$520.53 $650.66
$520.53 $650.66

Fine-tune your turbocharger's performance with this genuine BorgWarner S400SX turbine housing. Designed for high-performance applications, this housing allows you to adjust the boost threshold and exhaust flow characteristics of your S400 series turbocharger without replacing the entire unit.

This housing features a T4 divided (twin scroll) flange, which optimizes exhaust gas pulse energy to improve spool-up time and throttle response compared to open-scroll designs. The 1.00 A/R ratio provides an excellent balance of low-end torque and high-rpm flow capacity for mid-to-large displacement engines.

  • Manufacturer Part Number: 177103
  • Series: AirWerks S400SX
  • Turbine Wheel Compatibility: 83mm inducer / 74mm exducer
  • A/R Ratio: 1.00
  • Inlet Flange: T4 Twin Scroll (Divided)
  • Material: High-temperature resistant cast iron

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