The Garrett GT2871 Anti-Surge turbocharger with the Audi K24/K26 flanged turbine housing is engineered for Audi 5-cylinder 2.3L platform owners who want a direct-fit upgrade without the hassle of custom fabrication. Built on Garrett’s proven anti-surge compressor technology, it’s the choice for enthusiasts chasing serious power while retaining factory-style bolt-up simplicity. This is a drop-in solution for those ready to move beyond stock turbo limitations.
Specifications
- Compressor Wheel Inducer: 53.1mm
- Compressor Wheel Exducer: 71mm
- Compressor Wheel Trim: 56
- Compressor Housing A/R: 0.60
- Compressor Inlet: 3″
- Compressor Outlet: 2″
- Turbine Wheel Inducer: 53.9mm
- Turbine Wheel Exducer: 47mm
- Turbine Wheel Trim: 76
- Turbine Housing A/R: .63
- Turbine Housing Flange: Audi K24/K26 Flanged
- HP Potential: 450+HP
Performance & Application
This GT2871 Anti-Surge is purpose-built as a drop-in turbo for the Audi 5-cylinder 2.3L engine equipped with the K24/K26 turbine flange, eliminating the need for adapter housings or custom turbine matching. The anti-surge compressor design supports strong flow characteristics suited to enthusiasts pushing well beyond stock power levels. With its flow potential rated for 450+HP, this turbo is built for serious performance builds looking to extract significant gains from the factory-flanged platform. It’s the right call for owners who want a straightforward upgrade path that bolts into the existing K24/K26 turbine housing footprint.
Compatibility & Fitment
- Audi 5 cylinder 2.3L engines with K24/K26 turbine flange
Frequently Asked Questions
- What HP can the GT2871 Anti-Surge support?
- This turbocharger has 450+HP potential flow.
- What is the compressor housing A/R ratio?
- The compressor housing A/R is 0.60.
- What is the turbine housing A/R ratio?
- The turbine housing uses a .63 A/R.
- 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 flange.
For Audi 5-cylinder 2.3L owners running the K24/K26 flange, this GT2871 Anti-Surge delivers a genuine drop-in path to 450+HP potential without compromise.




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