Upgrade T04S frame .70 A/R Compressor housing for GT3071R/GT2871R 71mm 56 trim wheel

This T04S-style compressor housing is purpose-built for enthusiasts upgrading or rebuilding a GT3071R or GT2871R turbocharger with a 71mm 56-trim wheel. It’s the ideal choice for builders seeking a direct-fit, polished housing that delivers both optimized airflow characteristics and a clean, finished appearance under the hood. Whether you’re assembling a fresh build or restoring an existing core, this housing offers the correct fitment and flow geometry demanded by serious performance applications. Specifications Frame Style: T04S Compressor A/R Ratio: .70 Compressor Wheel Compatibility: 71mm 56 trim Inlet Size: 4″ Outlet Size: 2.5″ Surge Feature: Bullet Drilled (Anti-Surge) Finish: Polished (Polished Option not shown in picture) Garrett P/N: 409722-0010 Performance & Application Designed specifically for GT3071R and GT2871R turbochargers running the 71mm 56-trim compressor wheel, this housing is engineered to work with the .70 A/R configuration for a balance of response and flow. The anti-surge bullet drilling helps manage compressor surge characteristics, making this housing well-suited for builders who demand consistent boost delivery and improved reliability under varying load conditions. This housing is a strong fit for performance rebuilds and upgrades where matching the correct compressor housing to the 71mm 56-trim wheel is critical to turbo performance. Compatibility & Fitment GT3071R GT2871R Frequently Asked Questions What compressor wheel size and trim does this housing fit? This housing is designed for a 71mm 56-trim compressor wheel. What is the A/R ratio of this compressor housing? The compressor housing features a .70 A/R ratio. What inlet and outlet sizes does this housing use? This housing has a 4″ inlet and a 2.5″ outlet. What turbochargers is this compressor housing compatible with? This housing is applicable to GT3071R and GT2871R turbochargers. For builders running a GT3071R or GT2871R with the 71mm 56-trim wheel, this T04S .70 A/R housing delivers the correct fitment, anti-surge design, and polished finish to complete a performance-focused turbo build.