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BorgWarner SuperCore Assembly EFR 9174 Cast Iron Housing-Super Core Assemblies-BorgWarner-840232715484-
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BorgWarner SuperCore Assembly EFR 9174 Cast Iron Housing

BorgWarner
BWA12919097002
840232715484
Super Core Assemblies
5 Units In Stock - Ships Next Business Day
$ 2,562.24 $ 2,024.07
$ 2,024.07

SKU: 12919097002 | UPC: 840232715484

BorgWarner SuperCore Assembly EFR 9174 T4 Divided Cast Iron .92 A/R Housing

BorgWarner EFR 9174 SuperCore Assembly pairs a dual ball bearing CHRA with 62/84mm Gamma-Ti compressor wheel turbine wheel and T4 divided cast iron .92 A/R turbine housing for high boost applications. Build custom turbo setups on 4-8 cylinder performance engines from Subaru STI Nissan 350Z Infiniti G35 BMW M3 and similar vehicles. Gain quick response across the powerband with airflow supporting 550 to 1100 HP.

Key Features

  • Dual Ball Bearing CHRA: Water-cooled center section spins up fast and handles 100000 RPM for responsive throttle feel
  • Gamma-Ti Compressor Wheel 62/84mm: Extended tip height design moves 110 lbs/min of air for strong mid-range torque and top-end power
  • 74mm Inconel Turbine Wheel: High-temperature alloy resists heat cycles over 1050C for reliable operation at peak boost
  • T4 Divided .92 A/R Cast Iron Turbine Housing: Bolted T4 inlet flange with 3.0 inch V-band outlet balances exhaust flow and backpressure control
  • Ported Shroud Compressor Cover: Anti-surge geometry with 3.0 inch V-band outlet prevents stall during deceleration

Product Notes

  • SuperCore requires separate oil feed drain lines and coolant provisions during assembly
  • Verify engine displacement and horsepower goals using BorgWarner EFR MatchBot tool
  • Special order item with manufacturer lead time of 1-3 weeks

Installation Notes

  • Professional installation recommended.
  • Adapt T4 divided flange to turbo manifold with stainless steel gasket and V-band clamps
  • Oil feed M14x1.5 restricted line and unrestricted M8x1.25 drain mandatory

This Part Fits

Year Make Model Submodel
2004-2021 Subaru Impreza WRX STI
2003-2009 Nissan 350Z Fairlady Z
2003-2009 Infiniti G35 Sedan Coupe
2009-2024 Nissan GT-R R35
2015-2021 BMW 3 Series M3 F80
2015-2021 BMW 4 Series M4 F82

Why Choose BorgWarner?

  • Supplies turbos to Formula Drift NHRA champions and OEM production
  • Investment cast Inconel components built for endurance racing
  • Precision balanced assembly reduces vibration at high RPM

Frequently Asked Questions

  • Q: What engine sizes work with EFR 9174 SuperCore?
    A: Fits 2.0L to 6.0L 4-8 cylinder engines targeting 550-1100 HP in street strip or track cars
  • Q: What is the turbine housing material and A/R?
    A: Cast iron T4 divided housing with .92 A/R for balanced spool and flow includes 4 inch V-band inlet option compatibility
  • Q: What warranty applies?
    A: 12 month no mileage limit warranty when installed with proper oiling and cooling

Shipping & Handling

  • Method: UPS Ground freight
  • Availability: Special order ships in 1-3 business days
  • Packaging: Oversized box 20 x 18 x 16 inches
  • Weight: 28 lbs

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