The Garrett G-XRace GXR55-88 Super Core (0.25in PS, 106TW) is an internal turbo cartridge option specified for applications requiring 106TW trim and 0.25 inch PS. Offered for use in GXR55 turbo builds and rebuilds, the super core supplies the core wheel and shaft assembly needed to refresh or alter turbocharger performance where that trim and PS measure match the application.
Garrett G-XRace GXR55-88 0.25in PS 106TW Super Core