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Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39

Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39 is a premium aftermarket replacement turbo unit priced at $198.69. Built to OEM specs, it delivers reliable boost response and is ideal for restoring performance in 2.5L DOHC STI models after turbo failure or wear.

$198.69

● In stock

Buy at Lab Work Auto →

Price and availability may change. Click to see current details on Lab Work Auto.

Key features

  • Direct fit for 2004–2007 STI 2.5L DOHC
  • Matches OEM RHF55 VF39 specifications
  • Hand-inspected before shipment
  • Compatible with multiple OEM part numbers
  • Bolt-on installation, no tuning required
  • Stable boost delivery and thermal response
  • Premium aftermarket build quality

Pros

  • +Affordable at $198.69
  • +Easy installation for experienced DIYers
  • +Reliable performance out of the box
  • +Dual quality inspection process
  • +Exact OEM fitment
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Cons

  • Not for high-horsepower builds
  • No included gaskets or oil lines

About Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39

What is Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39?

The Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39 is a direct-fit replacement turbo unit designed for high-performance 2.5L DOHC Subaru engines. Engineered to match original factory specifications, this turbocharger ensures compatibility with 2004–2007 WRX STI models using the RHF55 VF39 configuration. It's built for drivers needing a reliable, cost-effective solution after turbo degradation or failure, offering stable boost delivery and restored throttle response without requiring engine modifications.

Key features

  • Precise Fitment — Matches OEM dimensions and mounting points for 2004–2007 STI 2.5L DOHC engines.
  • Multi-Part Number Compatibility — Cross-references VA440028, VB440028, 14411AA572, and other common OEM and aftermarket numbers.
  • Double Inspection Process — Each unit is checked post-production and pre-shipment for quality assurance.
  • Ready for Installation — Designed for straightforward bolt-on replacement with no tuning required immediately after fitment.
  • Durable Performance — Delivers consistent boost pressure and thermal stability under daily or spirited driving.
  • Aftermarket Premium Build — Constructed to high standards while offering savings over dealership units.
  • Wide Compatibility — Fits multiple turbo variants including RHF55 and VF39 configurations.

Who is Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39 for?

This turbocharger serves Subaru WRX STI owners whose turbos have failed due to age, oil coking, or boost leaks. It’s ideal for DIY mechanics with intermediate skills who want to restore factory performance without costly upgrades. Enthusiasts maintaining older STIs for daily driving or light track use will appreciate its reliability and plug-and-play design. It’s also suited for repair shops seeking a trusted, affordable replacement unit.

How does Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39 compare?

Compared to stock OEM turbos, this unit offers equivalent performance at a lower price point, making it a smart alternative to dealership replacements. It outperforms budget turbos in durability due to its dual inspection and adherence to factory specs. While not built for high-horsepower builds like forged aftermarket turbos, it surpasses standard polypropylene or generic imports in reliability. It’s a balanced choice between cost and quality for stock-replacement needs.

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Best use cases

  • Replacing failed stock turbo
  • Restoring factory boost levels
  • Daily driver performance repair
  • Mechanic shop replacement
  • Pre-tune base for mild upgrades
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Is Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39 right for you?

This turbocharger is best for Subaru owners replacing a worn or damaged factory unit. Ideal for DIYers with intermediate mechanical skills and access to basic tools. Not recommended for high-boost builds—consider forged turbos instead. For stock restorations, it offers superior value over dealership parts. Always inspect oil lines and intercooler hoses during installation to prevent repeat failure.

How it compares: Compared to OEM dealership turbos, this unit delivers similar fit and function at a fraction of the price. It outperforms low-cost generic imports in reliability and inspection standards, while remaining more affordable than performance-focused forged turbos designed for high-horsepower applications.

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Frequently Asked Questions

What vehicles fit the Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39?

This turbocharger fits 2004–2007 Subaru Impreza WRX STI models with the 2.5L DOHC engine. It's compatible with RHF55 and VF39 configurations and matches OEM mounting points and flanges for a secure fit.

Does this turbocharger require tuning after installation?

No, this unit is designed for stock replacement and does not require immediate tuning. However, a check of engine codes and boost levels is recommended after installation for optimal performance.

How is the quality ensured on this turbocharger?

Each unit undergoes hand inspection after manufacturing and again before shipment. It's built to meet original factory specifications for fit, balance, and performance consistency.

Is this turbocharger new or remanufactured?

This is a brand-new aftermarket turbocharger, not remanufactured. It is produced to match OEM standards and includes all necessary components for installation except gaskets and oil lines.

Can I install this turbo myself?

Yes, if you have intermediate mechanical experience and the proper tools. The process involves removing the old turbo, cleaning mounting surfaces, and reconnecting oil, exhaust, and intake lines.

How much does Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39 cost?

Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39 is $198.69 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.

Is Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39 in stock at Lab Work Auto?

Yes, Turbo Turbocharger for 04-07 Subaru Impreza WRX STI DOCH 2.5L RHF55 VF39 is currently in stock at Lab Work Auto.

Specifications

SKU
F8-016939
Last updated May 14, 2026