The Garrett GTX4508R is a serious ball bearing core turbocharger built for enthusiasts and engine builders chasing four-figure horsepower numbers. Sold without a turbine housing, this unit gives builders the flexibility to pair the GTX-R compressor side with the exact GT45-family turbine housing their application demands. It’s the choice for high-displacement engines where response, top-end flow, and proven Garrett engineering all matter.
Specifications
- Compressor Wheel Inducer: 108 mm
- Bearing Type: Ball Bearing
- Turbine Housing: Not included — compatible with any GT45 (45) turbine housing
- HP Capacity: 1400+ HP
- Turbo Family: GT45 family
- Series: GTX-R Series
- Compressor Housing Finish Option: Standard or Polished
- Compressor Housing Style Option: Standard or GT42 Style (Compact Option)
Performance & Application
Built around the GT45 platform, the GTX4508R is engineered for high-displacement engines running serious boost and demanding four-figure horsepower support. The ball bearing core delivers the fast spool characteristics enthusiasts expect from the GTX-R series while still holding the top-end flow capacity needed for extreme builds. Because it ships without a turbine housing, this core is ideal for builders who want to dial in their own turbine housing selection from the GT45 family to match their exhaust manifold, exhaust housing A/R preference, or specific power goals. This makes it a strong foundation for custom high-horsepower turbo systems rather than a bolt-on solution.
Frequently Asked Questions
- What HP can the GTX4508R support?
- The Garrett GTX4508R is rated to support 1400+ HP applications.
- Is this a ball bearing or journal bearing turbo?
- The GTX4508R is a ball bearing turbocharger.
- Does this turbo come with a turbine housing?
- No, this unit is sold with no turbine housing. It is okay to use with any 45 (GT45) turbine housing.
- What compressor housing options are available?
- You can choose a polished compressor housing finish, or select the Compact Option, which uses a GT42 style compressor housing.
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