Description
The BorgWarner EFR B2 74mm T4 Twin Scroll Wastegate Housing is engineered for high-performance turbo applications, offering reliable boost control for automotive enthusiasts and professionals alike. Crafted with precision, this turbine housing features a 74mm turbine wheel diameter and a .92 A/R ratio, optimized for efficient exhaust flow and power delivery. The twin scroll design enhances spool times and reduces turbo lag, providing improved throttle response and overall engine performance. Constructed from durable materials, it ensures longevity under demanding conditions, making it suitable for both street and racing environments. The housing is designed to integrate seamlessly with BorgWarner’s EFR series turbos, ensuring compatibility and ease of installation. Its robust construction and precise engineering make it an essential component for those seeking to maximize their vehicle’s turbocharged performance while maintaining reliable operation over time. This turbine housing does not meet California emissions standards but is ideal for off-road or racing applications where emissions compliance is not required.
Please note that this part requires a carb acknowledgment for installation and is not CARB approved, emphasizing its suitability for specialized use. The product is in regular stock, ready for quick shipping, and complies with all relevant safety and quality standards. Whether upgrading an existing turbo system or building a new setup, the BorgWarner EFR B2 turbine housing offers the performance and durability needed to elevate your vehicle’s capabilities.
Features:
- Engineered for high-performance turbo applications
- 74mm turbine wheel diameter for optimal exhaust flow
- .92 A/R ratio for improved boost response
- Twin scroll design for faster spool times
- Durable construction for long-lasting reliability
- Seamless integration with BorgWarner EFR turbos
- Requires carb acknowledgment, not CARB approved
- Suitable for street and racing use


















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