BorgWarner S300 T4 1.10 A/R Turbine Housing S300

If you're looking to fine-tune the performance of your BorgWarner S300 turbocharger, a different turbine housing can make a notable difference. This T4 flanged housing, with an A/R ratio of 1.10, is designed to help your turbo spool up a bit later but allow it to breathe more freely at higher engine speeds. This setup is often chosen when you need to manage exhaust gas temperatures or want to optimize power delivery for sustained high-RPM operation.

Crafted by BorgWarner, a well-known name in forced induction, this housing is built to handle the demands of a performance turbo system. The T4 flange is a popular choice for many aftermarket and performance turbocharger applications, ensuring good compatibility. The 1.10 A/R ratio is on the larger side, meaning it's designed to reduce backpressure and support higher horsepower levels compared to smaller A/R housings.

Keep in mind that this part is not CARB approved and cannot be shipped to California. Always consult your turbo system's specifications and your tuner to ensure this housing is the right match for your specific build and performance goals.