The Borg Warner 179905 1.00 A/R Turbine Housing is a top-of-the-line turbine housing that is designed to fit the S300SX Turbo. With a 1.00 A/R volute and twin flow configuration, this turbine housing is perfect for anyone looking to get the most out of their turbocharger. The 80mm turbine wheel design helps to provide optimal airflow, while the T4 inlet ensures that your turbocharger will get the air it needs to perform at its best.