Compressor housing T04E Frame GT3071R (also GT2871R upgrade) with 71mm 56 trim wheel

This T04E-style compressor housing is purpose-built for enthusiasts running a GT3071R or looking to upgrade a GT2871R with additional flow capacity. Featuring a 71mm 56 trim compressor wheel fitment, it delivers the airflow characteristics serious turbo builders demand from a Garrett-engineered housing. Whether you’re building a new GT3071R setup or maximizing an existing GT2871R platform, this housing is the correct choice for reliable, high-flow performance. Specifications Compressor Wheel Size: 71mm Compressor Wheel Trim: 56 trim Housing Style: T04E Compressor Housing A/R: .50 Compressor Inlet Size: 4″ Compressor Outlet Size: 2″ Garrett P/N: 756021-0002 Performance & Application This compressor housing is designed as a direct fit for the GT3071R turbocharger and serves as an effective upgrade path for the GT2871R, giving builders a way to extend the capability of their existing turbo platform. The 4″ inlet and 2″ outlet configuration is engineered to support enhanced flow and improved boost response over stock configurations. This housing is available with several machining and finish options, including a Ported Shroud (Anti-surge) machining option and a Polished Housing option, allowing builders to tailor the housing to their specific performance and cosmetic goals. A Weld Mazda Bracket option is also available for applications requiring that specific mounting configuration. Compatibility & Fitment Fits GT3071R turbocharger directly Can be used as an alternate upgrade housing on GT2871R applications Frequently Asked Questions What is the A/R ratio of this compressor housing? This compressor housing has a .50 A/R ratio. What size is the compressor wheel used with this housing? This housing is designed for a 71mm 56 trim compressor wheel. Can this housing be used on a GT2871R? Yes, this housing can also be used as an alternate upgrade on a GT2871R. What inlet and outlet sizes does this housing feature? This T04E style compressor housing features a 4″ inlet and 2″ outlet. For builders running a GT3071R or looking to unlock more potential from a GT2871R, this T04E compressor housing delivers the exact flow characteristics and fitment needed for a dependable, high-performance upgrade.