BorgWarner EFR B1 6258 Turbo Super Core

The BorgWarner EFR B1 6258 is a universal-fit turbocharger super core (CHRA) from the EFR series — the complete rotating cartridge with a forged-milled compressor wheel, lightweight Gamma-Ti turbine wheel, and dual ceramic ball-bearing center housing. It pairs with your choice of compressor and turbine housings to build a complete turbo.

• EFR B1 6258 super core (CHRA / rotating assembly)
• Compressor wheel: 62mm
• Turbine wheel: 58mm Gamma-Ti
• Bearing: Dual ceramic ball bearing
• Universal fitment — pairs with separately sold compressor & turbine housings

Specifications