EFR 7163


EFR 7163 is an excellent turbocharger for drift, road racing and street driven applications. The 7163 delivers incredibly fast spool and response while working well on stock and heavily modified engines.

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The EFR 7163 71mm OD compressor has a 57mm inducer and there is potential for 550hp – unheard of for this size compressor wheel. The low inertia 63mm Gamma-Ti turbine wheel is the optimal match for the 71mm FMW compressor wheel and is capable of 45+psi boost. This turbo uses the mid-size EFR ported-shroud compressor housing, great for fitment in cramped engine bays. Ideal for use in single turbo applications for the 300-550hp range, or as twin turbo applications 650-1000+hp.

Compressor Specifications
Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
Compressor Wheel OD (exducer): 71mm
Compressor Wheel Inducer: 57mm
Compressor Housing: 3″ inlet, 2.0″ hose coupler outlet
Built-in BOV: All EFR compressor housings incorporate an integrated BOV.
Inlet: 3.0″ Hose Coupler
Outlet: 2.0″ Hose Coupler w/ integrated Vband option
Turbine Specifications
Turbine type: Low Inertia Gamma-Ti Turbine Wheel
Turbine Wheel OD: 63mm
Stainless Steel Investment cast Housing
The EFR 7163 is available in (3) different turbine housing configurations:
0.85 A/R T25 undivided (Internal WG)
0.85 A/R V-Band In/Out (Internal WG)
0.80 A/R T4 twinscroll (External WG)
Turbine outlet: GT-Vband (aka small 3″ vband) ~92mm OD for all EFR turbos

Additional information

Weight N/A
Dimensions N/A
Turbine Housing

None, T25 .85 A/R IWG, V-band .85 A/R IWG, T4 .80 A/R Twin Scroll IWG, V-band .85 A/R External WG



Borgwarner Turbos EFR & Airwerks