Specifications
- Compressor Wheel: 88mm
- Ported Shroud: 0.25″ PS
- Surge Slot Width: 0.25″
- Turbine Wheel: 106mm (full size)
- Class: X275
- Garrett P/N: 934174-5007S
- Also Known As: GX-Race55, GXR55-88
Wheels
- Compressor wheel: 88.9 mm inducer, 133 mm exducer
- Turbine wheel: 112 mm inducer, 106 mm exducer, 90 trim
These are the wheel sizes Garrett publishes for the GXR55-88 with the 0.25″ map groove supercore.

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