BorgWarner 12801019009 EFR B2 80mm Turbine Housing 0.92 A/R T4 Twin Scroll with Wastegate

The BorgWarner 12801019009 is a high-performance turbine housing designed for the EFR (Engineered For Racing) B2 series turbochargers. This precision-engineered component features an 80mm turbine wheel housing with a 0.92 A/R (Area/Radius) ratio, optimized for applications targeting 600-1100 horsepower.

Key Features:

• 80mm turbine wheel compatibility for superior exhaust flow
• 0.92 A/R ratio for balanced spool-up and top-end power
• T4 twin scroll inlet flange for improved exhaust pulse separation
• Integrated wastegate assembly for precise boost control
• Part of BorgWarner's competition-proven EFR turbocharger platform
• Manufactured to OEM quality standards with precision tolerances

This turbine housing is designed for universal fitment with BorgWarner EFR 9174 and 9180 series turbochargers. The twin scroll design improves turbine efficiency by keeping exhaust pulses separated, resulting in quicker spool-up and enhanced low-end torque response. The integrated wastegate assembly provides reliable boost control for high-performance racing and street applications.