Garrett 934174-5012S G-XRace GXR55-94 XBoost Supercore 94mm/149mm Racing Turbo

Vehicle Fitment

• Universal - compatible with professional motorsport and drag racing applications on 3.0L-12.0L engine platforms; requires a compatible G-XRace GXR55 or G-Series G55 turbine housing

Fitment Notes

• Supercore only - a G-XRace GXR55 or G-Series G55 turbine housing is required and sold separately; available in V-Band and T6 inlet configurations across multiple A/R options
• G-XRace GXR55 turbine housings are interchangeable with G-Series G55 housings - enables a direct upgrade from a G55 supercore without changing existing exhaust hardware
• 94mm compressor inducer - the largest inducer option in the GXR55 lineup, delivering maximum compressor flow within the G55 frame for extreme top-end power builds
• Designed for professional motorsport and extreme drag racing competition - not for street use on public roads
• Speed sensor port machined into compressor housing - compatible with p/n 923586-0003 (G-Smart Bluetooth Module), 781328-0003 (street kit with gauge), or 781328-0004 (pro kit without gauge), all sold separately
• Maximum allowable turbocharger speed: 84 krpm - use above this speed is at owner's risk
• Not CARB legal - for competition and off-road race use only; not for sale in California

Features

• XBoost technology delivers +21% compressor flow versus the G-Series G55-1950 88mm baseline, with enhanced pressure ratio capability and improved efficiency at extreme airflow levels
• 94mm compressor inducer / 149mm compressor exducer - the largest compressor wheel configuration in the GXR55 lineup for the highest peak power potential within the G55 turbine frame
• Built on Garrett's G55 turbine frame: 112mm / 106mm Inconel turbine wheel delivering 15% more turbine flow than the GTX Gen II platform
• Lower intake temperatures via XBoost compressor efficiency for denser charge air and maximum power potential at extreme boost levels
• Lightweight one-piece aluminum backplate reduces overall supercore weight
• Fully machined flange-style speed sensor port for turbo shaft speed monitoring and overspeed protection
• Compatible with all G-Series G55 and G-XRace GXR55 turbine housings - seamless upgrade path from G55 without changing exhaust hardware
• Designed for extreme drag racing, high-power time attack, and top-level competition motorsport requiring maximum airflow in the G55 frame

Specifications

• Part Number: 934174-5012S
• Series: G-XRace GXR55-94
• Compatible Engine Displacement: 3.0L-12.0L
• Compressor Inducer: 94mm
• Compressor Exducer: 149mm
• Turbine Frame: G55
• Turbine Wheel: Inconel, 112mm Inducer / 106mm Exducer (90 Trim)
• Technology: XBoost (+21% compressor flow vs. G55-1950 88mm)
• Center Housing: Lightweight One-Piece Aluminum Backplate
• Speed Sensor Port: Yes - Fully Machined Flange-Style (sensors sold separately)
• Max Turbocharger Speed: 84 krpm
• Compatible Turbine Housings: G-Series G55 / G-XRace GXR55 V-Band and T6 housings
• Sold As: Supercore Only (turbine housing not included)

Included Components

• 1x Garrett G-XRace GXR55-94 Supercore (94mm/149mm compressor, G55 112mm/106mm turbine wheel)
• Note: Turbine housing, speed sensor, and installation hardware sold separately

Product Description

The Garrett 934174-5012S is the GXR55-94 supercore from Garrett's G-XRace series - the largest compressor inducer option in the GXR55 lineup at 94mm, delivering the highest peak flow potential within the G55 turbine frame. Built on the G55 platform with XBoost compressor aerodynamics, the GXR55-94 produces +21% more compressor flow than the G55-1950 88mm baseline, along with enhanced pressure ratio capability and greater efficiency at extreme airflow levels. With a 94mm inducer and 149mm exducer, this supercore is engineered for race builds chasing the maximum power output possible from the G55 frame - applications where top-end flow capacity is the priority over spool response.

The GXR55-94 is supercore-only and is fully interchangeable with G-Series G55 and G-XRace GXR55 turbine housings (V-Band and T6 configurations), making it a direct upgrade for builders already running a G55 setup. The G55 turbine stage - a 112mm/106mm Inconel wheel with 15% more flow than GTX Gen II - provides the exhaust energy recovery to support the GXR55's expanded compressor aero. A machined speed sensor port is included for optional shaft speed monitoring. Turbine housing, speed sensor, and installation hardware are sold separately.