Compressor housing T04E Frame GT3071R (also GT2871R Upgrade) with 71mm 56 trim wheel - 2.75"In 2"out

This T04E-style compressor housing is engineered for GT3071R turbochargers running a 71mm 56 trim wheel, and doubles as a proven upgrade path for GT2871R applications. It’s built for enthusiasts pushing beyond stock housing limitations who need reliable, correctly-matched hardware without compromising fitment. Backed by genuine Garrett part numbers, this housing delivers the airflow characteristics serious builds demand. Specifications Compressor Wheel Size: 71mm Compressor Wheel Trim: 56 trim Compressor Housing A/R: 0.50 Housing Style: T04E Compressor Inlet Size: 2.75″ Compressor Outlet Size: 2″ Garrett P/N: 756021-0001 Also Known As: GT2871R Upgrade Performance & Application This compressor housing is designed for GT3071R turbochargers, including fitment for the Gen2 GTX3071R, giving builders a direct-fit solution for their compressor side upgrade. It also serves as an alternate upgrade option for GT2871R turbochargers, with an available fitment configuration for the GT2871R 71mm 52 trim wheel. This flexibility makes it a smart choice for enthusiasts looking to extract more performance from an existing GT2871R platform without a full turbo swap, or for those building out a GT3071R from the ground up. Frequently Asked Questions What is the A/R ratio of this compressor housing? The compressor housing features a 0.50 A/R ratio. Can this housing be used on a GT2871R? Yes, this compressor housing can also be used as an alternate upgrade on a GT2871R. What size inlet and outlet does this housing have? This T04E-style housing features a 2.75″ inlet and 2″ outlet. Does this fit the Gen2 GTX3071R? Yes, there is a specific fitment option available for the Gen2 GTX3071R. For builders running a GT3071R or upgrading a GT2871R, this T04E compressor housing delivers the exact fitment and airflow specifications your build requires — genuine Garrett engineering, no guesswork.