TiAL Sport BWVB3745-130 A/R 83.5mm S400 Stainless Steel Turbine Housing

TiAL Sport is well-known for making high-performance turbocharger components, and this BWVB3745-130 turbine housing is a prime example of their focus on durability and airflow. This housing is specifically designed for S400-frame turbochargers, featuring a 0.83 A/R ratio. That A/R ratio is crucial because it dictates how quickly the turbocharger spools up and how much airflow it can handle at higher RPMs. A 0.83 A/R is a popular choice for many builds looking for a good balance between quick response and top-end power.

Constructed from stainless steel, this turbine housing is built to withstand the extreme temperatures and pressures found in a high-performance forced induction system. Stainless steel offers excellent resistance to corrosion and thermal fatigue, meaning it will hold up over time even under demanding conditions. The 83.5mm outlet size is also a key specification, ensuring it mates properly with the exhaust manifold and downpipe for efficient exhaust gas routing. This housing is a direct replacement for the factory S400 turbine housing, making installation straightforward for those rebuilding or upgrading their turbo setup.

When installing this turbine housing, ensure all mating surfaces are clean and free of debris. Proper gasket selection and torque sequencing are important for a leak-free seal. This part is not CARB approved and cannot be shipped to California due to emissions regulations.