BorgWarner Turbine Housing SX S200 T4 A/R 1.09 61mm

This is the BorgWarner SX S200 T4 turbine housing, part number 177196. It's designed to fit BorgWarner's S200 series turbochargers and features a 1.09 A/R ratio with a 61mm inducer diameter. This housing plays a crucial role in directing exhaust gases from your engine into the turbocharger's turbine wheel, influencing how quickly the turbo spools up and the overall powerband characteristics.

The 1.09 A/R (Area/Radius) ratio is on the larger side, which generally helps the turbocharger breathe better at higher engine speeds. This means it's well-suited for applications where you're looking for strong top-end power and are willing to accept a slightly slower initial spool compared to a smaller A/R housing. The cast iron construction is solid and built to withstand the high temperatures and pressures of exhaust gases. This housing is a direct replacement for your existing S200 turbine housing, assuming it matches the specified A/R and inducer size.

Keep in mind that this part is not CARB approved and cannot be shipped to California. Always refer to your turbocharger's specific application and manufacturer recommendations to ensure this housing is the right choice for your build.