Turbocharger, Garrett GT3071R 2.75″ in / 2″ out with .63 A/R Audi K24/K26 flanged turbine housing

The Garrett GT3071R with the Audi K24/K26 flanged turbine housing is a purpose-built, drop-in upgrade for Audi 5-cylinder enthusiasts seeking a direct bolt-on replacement without the fabrication headaches of a universal turbo. Engineered for drivers chasing serious top-end power while retaining a factory-style fitment, this unit is the choice for builds that demand both performance and simplicity. It’s the ideal solution for enthusiasts who want a proven Garrett core matched precisely to their platform’s turbine flange.

Specifications

• Compressor Wheel Inducer: 53mm
• Compressor Wheel Exducer: 71mm
• Compressor Wheel Trim: 56
• Compressor Housing A/R: 0.50
• Compressor Inlet: 2.75″
• Compressor Outlet: 2″
• Turbine Wheel Inducer: 60mm
• Turbine Wheel Exducer: 55mm
• Turbine Wheel Trim: 84
• Turbine Housing A/R: .63
• Turbine Housing Flange: Audi K24/K26 flanged
• HP Capacity: 480+HP potential flow

Performance & Application

This GT3071R is designed as a drop-in turbo for the Audi 5-cylinder 2.3L engine platform, built around the K24/K26 turbine housing flange found on these applications. With its compressor and turbine wheel geometry, it’s tuned to deliver strong flow characteristics suited to enthusiasts pushing well beyond stock output. The combination of housing sizing and wheel trims positions this turbo as a capable upgrade for drivers looking to significantly increase power while keeping factory-style installation simplicity.

Compatibility & Fitment

• Audi 5-cylinder 2.3L engines equipped with the K24/K26 turbine housing flange

Frequently Asked Questions

What HP can the GT3071R support?

This turbo offers 480+HP potential flow.

What is the A/R ratio of the turbine housing?

The turbine housing uses a .63 A/R ratio.

What is the A/R ratio of the compressor housing?

The compressor housing uses a 0.50 A/R ratio.

What vehicles is this turbo compatible with?

This is a drop-in turbo for the Audi 5-cylinder 2.3L engine with the K24/K26 turbine housing flange.

For Audi 5-cylinder 2.3L owners who want a direct-fit Garrett GT3071R matched precisely to their K24/K26 flange, this turbocharger delivers the flow potential and bolt-on convenience serious builds demand.