BorgWarner Airwerks S300SX3-66, S366, S300 91/79 with .91 A/R Twin Scroll Turbine Housing.
Rated at 500 to 830 HP
This is the largest of the S300SX3 midframe turbochargers from BorgWarner Airwerks line.
Compressor: 66 mm inducer / 91.4mm exducer, with exclusive Extended Tip Technology.
Turbine: 80 mm inducer / 73 mm exducer. Cast in Inconel 713 for high-temperature operation.
Compressor: Large 4.00" ported anti-surge air inlet / 3.00" charge pipe outlet
Turbine: .91 A/R Twin Scroll, with 'T4-style', divided entry, and 4.21" v-band discharge.