BorgWarner 8374 EFR Ball Bearing T4 Turbo (179357)

Borg Warner
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$3,224.30 $4,174.64Instant Savings of 23% ($950.34)

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8374 T4 Turbocharger (475-750HP) By BorgWarner

EFR 8374 is engineered to support big power levels yet spool fast enough for professional time attack teams. The 74mm Gamma-Ti turbine wheel is the optimal match for the 62.6mm inducer / 83mm exducer FMW compressor wheel and is capable of 79lb/min airflow and 45+psi boost. This is one of the most exciting turbos in the EFR lineup for the high-power addicts.

This turbo has the largest EFR compressor housing and is ideal for use in single turbo applications for the 475-750hp range, or as twin turbo applications >1400+hp. Ceramic Ball Bearing only, water cooling optional (recommended)


  • Gamma-Ti turbine wheel
  • Extended Tip Technology
  • Boost Control Solenoid Valve (BCSV)
  • Forged Milled Compressor Wheel (FMW)
  • Integrated Compressor Recirculation Valve (CRV)
  • Dual ceramic ball bearing assembly with metal cage
  • Compressor cover with speed sensor mounting provisions

Relevant Part Numbers


  • 475-750HP
  • B2 Turbo Frame Size
  • 62mm Comp. Wheel Inducer Dia.
  • 83mm Comp. Wheel O.D.
  • 74mm Turbine Wheel O.D.
  • Straight Compressor Outlet

What's in the Box?

  • 1 Complete Turbocharger


  • 1-Year Manufacturer's Warranty

Customer Reviews

Based on 1 review
Oscar C
Power to the AWD

I am adding this to my Evo X. This is one of those turbos that has been extensively tested by the public and in the race track for durability and performance. Every piece of this machine screams quality and craftsmanship. I don’t know what else to say other than is a great turbo that will produce lots of chu chu power.