Engineered for builders who demand precision exhaust housing flow, this Garrett G25-EXT turbine housing is purpose-built for standard rotation applications requiring an externally wastegated setup. Its V-band entry and exit configuration makes it the ideal choice for enthusiasts and shops building serious G25-based turbo systems where flexibility and flow efficiency matter most. This housing is a direct fit for anyone already running or planning a G-Series II G25 external wastegate configuration.
Specifications
- A/R Ratio: .92
- Rotation: Standard Rotation
- Wastegate Configuration: Externally Wastegated (EXT)
- Turbine Inlet: V-band
- Turbine Outlet: V-band
- Garrett P/N: 740902-0068
Performance & Application
This turbine housing is designed specifically for the Garrett G25 G-Series II turbocharger platform in externally wastegated configurations. The .92 A/R strikes a balance suited to builders seeking responsive spool characteristics without sacrificing top-end flow. Its V-band entry and exit design streamlines installation and supports high-performance exhaust routing for serious builds. This housing is best suited for enthusiasts running standard rotation G25 turbos who require an external wastegate setup.
Frequently Asked Questions
- What A/R ratio does this turbine housing use?
- This Garrett G25 turbine housing features a .92 A/R ratio.
- Is this housing internally or externally wastegated?
- This is an externally wastegated (EXT) turbine housing.
- What type of inlet and outlet does this turbine housing use?
- It features a V-band entry and V-band exit for maximum flow efficiency.
- What rotation is this turbine housing configured for?
- This turbine housing is configured for standard rotation.
For builders running a standard rotation G25 externally wastegated setup, this V-band .92 A/R turbine housing delivers the flow characteristics and installation flexibility needed for a serious performance build.


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