BorgWarner EFR B2 74mm .92 A/R T4 Twin Scroll Turbine Housing — Performance Turbo Parts

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SKU: BWA12741008001
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Sale price$1,121.56 Regular price$1,546.98
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About BorgWarner

BorgWarner engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BorgWarner lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Maximize Efficiency with BorgWarner EFR B2 Turbine Housings

The BorgWarner EFR B2 74mm .92 A/R T4 Twin Scroll turbine housing is engineered to extract maximum performance from your EFR turbocharger. The twin-scroll design is specifically crafted to improve exhaust pulse energy, resulting in significantly faster spool times and improved low-end torque without sacrificing top-end power. This housing is a critical component for those looking to optimize their engine's breathing and response characteristics.

Technical Specifications

  • Compatibility: EFR B2 Frame Turbochargers
  • A/R Ratio: .92
  • Inlet Flange: T4 Twin Scroll
  • Wheel Size: 74mm
  • Integrated Wastegate Provision

Constructed from high-grade materials, this turbine housing is built to withstand extreme exhaust gas temperatures and high-pressure environments. The twin-scroll configuration effectively separates exhaust pulses, reducing interference and allowing the turbo to reach target boost levels much sooner than traditional single-scroll housings. Whether you are building a dedicated drift car, a drag racer, or a high-performance street machine, this housing provides the precision and reliability required for competitive setups. Enhance your turbo system's responsiveness and overall power delivery with this premium BorgWarner component, available now at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About BorgWarner

BorgWarner engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BorgWarner lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Maximize Efficiency with BorgWarner EFR B2 Turbine Housings

The BorgWarner EFR B2 74mm .92 A/R T4 Twin Scroll turbine housing is engineered to extract maximum performance from your EFR turbocharger. The twin-scroll design is specifically crafted to improve exhaust pulse energy, resulting in significantly faster spool times and improved low-end torque without sacrificing top-end power. This housing is a critical component for those looking to optimize their engine's breathing and response characteristics.

Technical Specifications

  • Compatibility: EFR B2 Frame Turbochargers
  • A/R Ratio: .92
  • Inlet Flange: T4 Twin Scroll
  • Wheel Size: 74mm
  • Integrated Wastegate Provision

Constructed from high-grade materials, this turbine housing is built to withstand extreme exhaust gas temperatures and high-pressure environments. The twin-scroll configuration effectively separates exhaust pulses, reducing interference and allowing the turbo to reach target boost levels much sooner than traditional single-scroll housings. Whether you are building a dedicated drift car, a drag racer, or a high-performance street machine, this housing provides the precision and reliability required for competitive setups. Enhance your turbo system's responsiveness and overall power delivery with this premium BorgWarner component, available now at GGCRACING.

Product Details

Product Description

About BorgWarner

BorgWarner engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BorgWarner lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Maximize Efficiency with BorgWarner EFR B2 Turbine Housings

The BorgWarner EFR B2 74mm .92 A/R T4 Twin Scroll turbine housing is engineered to extract maximum performance from your EFR turbocharger. The twin-scroll design is specifically crafted to improve exhaust pulse energy, resulting in significantly faster spool times and improved low-end torque without sacrificing top-end power. This housing is a critical component for those looking to optimize their engine's breathing and response characteristics.

Technical Specifications

  • Compatibility: EFR B2 Frame Turbochargers
  • A/R Ratio: .92
  • Inlet Flange: T4 Twin Scroll
  • Wheel Size: 74mm
  • Integrated Wastegate Provision

Constructed from high-grade materials, this turbine housing is built to withstand extreme exhaust gas temperatures and high-pressure environments. The twin-scroll configuration effectively separates exhaust pulses, reducing interference and allowing the turbo to reach target boost levels much sooner than traditional single-scroll housings. Whether you are building a dedicated drift car, a drag racer, or a high-performance street machine, this housing provides the precision and reliability required for competitive setups. Enhance your turbo system's responsiveness and overall power delivery with this premium BorgWarner component, available now at GGCRACING.

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