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BorgWarner 177191 EFR B2 70mm Turbine Housing 1.05 A/R T4 Twin Scroll

Manufacturer

Picture for manufacturer Borg Warner

Part Number

177191
16 reviews
Sale Price

$173.01

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The BorgWarner 177191 is a precision-engineered turbine housing designed specifically for the EFR (Engineered For Racing) B2 frame turbochargers with a 70mm turbine wheel. This high-performance housing features a 1.05 A/R (area/radius) ratio and T4 twin scroll inlet flange configuration, optimizing exhaust gas flow for improved turbocharger response and power delivery.

Key Specifications:

  • Frame size: EFR B2
  • Turbine wheel size: 70mm
  • A/R ratio: 1.05
  • Inlet flange: T4 twin scroll
  • Constructed from high-temperature cast iron for durability
  • Precision CNC-machined for optimal flow characteristics

Performance Benefits:

  • Twin scroll design separates exhaust pulses for reduced turbo lag and improved low-end response
  • 1.05 A/R ratio provides balanced performance between spool-up and top-end power
  • Compatible with BorgWarner EFR B2 70mm turbocharger assemblies
  • T4 flange ensures compatibility with common aftermarket exhaust manifolds

This turbine housing is ideal for performance enthusiasts and professional tuners looking to optimize their EFR turbocharger system for specific power goals and engine configurations. The twin scroll design is particularly effective on engines with divided exhaust manifolds, maximizing exhaust energy extraction.

The product as described

For what I purchased I am well satisfied. Although I did not receive any e-mails other than the conformation one and now this one. I just did not know when they would arrive. When I called to ask I was told that they have shipped and I would get a e-mail with tracking info, and I did not. But I am satisfied none the less. So thank you.

Great price and quick delivery. Very easy shopping experience!

Easy and fast!

easy

Good

it was good

Excellent customer service....<br>fast delivery<br>and good quality parts<br><br>

Great!!

Very good

Fast service

Just placed order, waiting for shipment to arrive first

great so far.

Good

I ordered a lower control arm for my 2002 MERCEDES S500.<br>The order was shipped fast and the price was way lower than any of the competitors.I highly recommend AUTOPLICITY.COM

quick, easy

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