Manufacturer: BorgWarner
Total add-ons:
Unlock serious performance with the Borg Warner S400 1.15 A/R Exhaust Housing engineered for maximum flow and high-boost stability in demanding applications. Perfect for high-horsepower diesel or gas builds, this turbine housing is built to accommodate 96mm turbine wheels and is designed to withstand extreme exhaust temperatures and pressures.
Featuring a T6 divided inlet flange and a 1.15 A/R ratio, this housing strikes the perfect balance between fast spool and strong top-end power. The divided inlet enhances exhaust pulse energy in twin-scroll setups, while the durable cast iron construction ensures long-term reliability under heavy load.
1.15 A/R Ratio – Great mid-range option for quick spool and top-end flow
96mm Turbine Wheel Fitment – Optimized for high-performance S400 turbos
T6 Divided Inlet Flange – Improves turbo response and efficiency in twin-scroll systems
Durable Cast Iron Construction – Built to handle extreme heat and boost
Designed for Borg Warner S400 Series Turbos – Ideal for custom drag, pulling, and high-performance street builds
Warranty:
Backed by Borg Warner's limited warranty against defects in materials and workmanship. Warranty does not cover damage due to incorrect installation or tuning.
Fitment:
Universal – Compatible with Borg Warner S400 series turbos using a 96mm turbine wheel and T6 divided inlet.
Fitment Notes:
Fabrication may be required depending on your setup
Ensure compatibility with your turbo’s turbine wheel and intended application
Commonly used in high-boost diesel drag, pulling trucks, and performance gas builds
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