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Air and Fuel› Superchargers, Turbochargers and Components

Industrial Injection

BorgWarner EFR 6258-A 0.64 A/R

$2,694.05 $2,155.24 Save $538.81

SKU: I002 179150

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Special Order
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Overview

The BorgWarner EFR 6258 is the smallest turbocharger in the ultra-efficient EFR lineup. The 62mm OD compressor has a 49mm inducer at 44lb/min max flow - supporting up to 450hp with very large map width for outstanding power potential even at high boost. The 6258 is the fastest spooling EFR turbo - and fits in a small package. Ideal for small engines in single turbo configuration and stock internal or modified engines. This is an excellent turbocharger for autocross, rally, drift, road racing and street driven applications. The low inertia 58mm Gamma-Ti turbine wheel is optimally matched for maximum response and fastest spool with the FMW compressor wheel. EFR 6258 uses the smallest-sized EFR compressor housing, fitting in the tightest engine bays particularly twin turbo V6 applications. Ideal for use in single turbo applications for the 225-450hp range, or as twin turbo applications 400-700+hp. Ceramic Ball Bearing only, watercooling recommended (not mandatory).
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BorgWarner EFR 6258-A 0.64 A/R

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandIndustrial Injection
Part NumberI002 179150

Videos

BorgWarner EFR Turbo Overview

BorgWarner EFR Turbo Overview
Buying a New Turbo? Watch this FIRST! Should You Upgrade to an EFR?

Buying a New Turbo? Watch this FIRST! Should You Upgrade to an EFR?
1999 Miata - EFR Borg Warner Turbo 6258 (375hp & 319 tq)

1999 Miata - EFR Borg Warner Turbo 6258 (375hp & 319 tq)
BorgWarner EFR vs. AirWerks Turbos | Which is Right for YOU?

BorgWarner EFR vs. AirWerks Turbos | Which is Right for YOU?
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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