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BorgWarner 12741008003 B2 74mm 1.45 A/R T4 Twin Scroll Turbine Housing

Manufacturer

Picture for manufacturer Borg Warner

Part Number

12741008003
14 reviews
Sale Price

$856.61

Estimated ship date Sunday, November 15

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Product Details

The BorgWarner 12741008003 is a high-performance B2 turbine housing designed for the EFR 8374 and 8474 turbocharger series. This precision-engineered component features a 1.45 A/R ratio with a T4 inlet flange and twin scroll configuration, optimized for external wastegate applications.

Key Specifications:

  • Turbine wheel size: 74mm outer diameter
  • A/R ratio: 1.45
  • Inlet flange: T4 twin scroll divided
  • Wastegate configuration: Non-wastegated (external wastegate required)
  • Frame size: B2
  • Compatible with BorgWarner EFR 8374 and 8474 turbochargers

This turbine housing is a critical component for building Type-H configurations in the EFR 8374/8474 series. The 1.45 A/R ratio provides an excellent balance between turbocharger response and top-end power capability, making it ideal for high-performance applications requiring 475-800+ horsepower. The twin scroll design improves exhaust pulse separation for better spool characteristics and reduced turbo lag.

Commonly used in professional time attack, drift, and road racing applications on 4-cylinder and 6-cylinder engines including Evo, Subaru, Honda, RB, and 2JZ platforms.

Seems easy so far.

Great service, prices, and timeliness! I will continue to shop at autoplicity!

I put my order at 7/29 and received nothing after the order. I emailed to ask my order status at 7/31 and at 8/1 I received my order. Pretty fast shipping. I am satisfied with the shipping and hope later tonight the product will work fine for my car!

Ordering was easy and quick. Your form showed Paypal but wouldn't let me select it.

Great service

Fast and easy

awesome price easy transaction fast response will buy from autoplicity again

I like the free shipping, found cheaper prices else where but with your free shipping it was less money!

So far very smooth.

easy to process so far

They had the best price I could find, anywhere, for Royal Purple HPS oil (and I spent hours searching). I ordered a case on Sunday night and it arrived on Wednesday (standard shipping) from half-way across the country. For standard shipping, that's pretty fast. They must have send it out early Monday morning, at the latest.<br><br>I'm very satisfied with my experience, and I'll definitely be ordering from them again, when I need another case of oil.

Simple and fast checkout

It was fast and easy ;) I cant wait for my stuff to arrive

Quick and easy. Will report back when products arrive.

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