Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39
Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39 is a direct-fit replacement turbo with premium build quality, priced at $193.05. Designed for IHI RHF55 VF39 compatibility, it delivers reliable performance for daily drivers and tuned STIs needing a durable, cost-effective turbo upgrade or repair.
● 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 WRX STI 2.5L
- Dual hand-inspection before shipment
- Built to OEM factory specifications
- Bolt-on installation, no modifications
- Compatible with multiple OEM part numbers
- 1-year warranty and money-back guarantee
- Fast US-based shipping
Pros
- +Affordable replacement at $193.05
- +Reliable performance for stock engines
- +Dual quality inspection ensures integrity
- +Easy DIY installation with common tools
- +Backed by warranty and US support
Cons
- −Not designed for high-boost tuning
- −No performance gains over stock turbo
About Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39
What is Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39?
The Labwork Turbocharger is a high-performance aftermarket replacement unit engineered specifically for the 2004–2007 Subaru Impreza WRX STI with the 2.5L DOHC engine. Designed as a direct match for the OEM IHI RHF55 VF39 turbo, this unit ensures seamless integration into the factory exhaust and intake systems. Priced at $193.05, it offers an affordable yet reliable solution for owners restoring or maintaining their turbocharged boxer engine. Each unit is built to original factory specifications and undergoes dual inspection—once post-production and again before shipping—to ensure quality and functionality.
Key features
- Precise Fitment — Matches OEM dimensions and mounting points for 2004–2007 WRX STI 2.5L models.
- Dual Quality Inspection — Hand-checked during manufacturing and pre-shipment for defects.
- OEM-Spec Engineering — Built to replicate factory performance and airflow characteristics.
- Easy Installation — Direct bolt-on design requires no modifications to exhaust or ECU.
- Multiple Part Number Compatibility — Fits applications linked to VA440028, 14411AA572, and other common cross-references.
- 1-Year Warranty — Backed by a manufacturer warranty and money-back guarantee.
- Fast US Shipping — Shipped from domestic warehouse for quick delivery.
Who is Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39 for?
This turbocharger suits DIY mechanics, Subaru enthusiasts, and repair shops maintaining or restoring 2004–2007 WRX STI models. It’s ideal for those replacing a failed OEM turbo without overspending on a high-horsepower build. The unit supports stock or mildly tuned setups, offering stable boost response and reliability. It's not intended for high-boost race engines but excels in daily-driven or weekend-performance applications.
How does Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39 compare?
Compared to remanufactured OEM turbos, the Labwork unit offers similar fit and function at a lower price point, with added quality control. Unlike generic turbo brands with inconsistent tolerances, it adheres closely to factory specs for predictable performance. While not a high-flow aftermarket turbo like those from Garrett or Precision, it outperforms budget units in durability and consistency, making it a smart middle-ground option for stock-replacement needs.
Best use cases
- →Replacing failed OEM RHF55 turbo
- →Restoring 2004-2007 WRX STI drivability
- →Daily driver maintenance repair
- →DIY turbo swap with stock specs
- →Cost-effective alternative to reman units
Is Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39 right for you?
This turbocharger is best for Subaru owners with a failed or worn OEM turbo seeking a reliable, budget-friendly replacement. Ideal for DIYers with basic mechanical skills and standard hand tools. Not for high-performance builds—consider a larger aftermarket turbo if upgrading for power. Alternatives include remanufactured IHI units or used OEM cores, but this Labwork option offers better consistency and warranty protection at a competitive price.
How it compares: Compared to remanufactured OEM turbos, this Labwork unit offers similar fit and reliability at a lower cost. It outperforms no-name aftermarket turbos in quality control and fitment, though it doesn't match high-flow performance turbos designed for modified engines.
More from Lab Work Auto
#63P-81950-00-00 TRIM RELAY For YAMAHA OUTBOARD F150 & 250 Part
$17.80
(4 pcs) For Ford F-150 Bed Interface Plates Standard Tie Down FL3Z9928408AB
$16.82
-6 An X 5/16-24 O Ring Hydroboost Spittier/Return Port Fitting Car Accessories
$8.20
-6AN AN6 Fuel Adapter Fitting to 3/8 Quick Connect LS W/ Clip Female Black GM
$7.91Frequently Asked Questions
What vehicles is the Labwork Turbocharger compatible with?
▾
It fits 2004–2007 Subaru Impreza WRX STI models with the 2.5L DOHC engine. Designed as a direct replacement for the IHI RHF55 VF39 turbo, it matches OEM specifications and integrates seamlessly with factory exhaust and intake systems.
Does this turbocharger require tuning after installation?
▾
No, this turbo is designed to replicate stock performance. It can be installed without ECU tuning, making it ideal for stock replacements. However, inspect related components like intercooler hoses and boost pipes before startup.
How is the Labwork Turbocharger quality controlled?
▾
Each unit undergoes hand inspection after production and again before shipment. This dual-check process ensures the turbo is free from defects and meets factory specifications for fit and function.
Is the Labwork Turbocharger new or remanufactured?
▾
It is a brand-new aftermarket turbocharger built to OEM standards. It is not rebuilt or remanufactured, offering fresh components with a 1-year warranty and consistent performance out of the box.
Can I install this turbo myself?
▾
Yes, if you have basic mechanical experience and tools. The turbo bolts directly onto the exhaust manifold and connects to stock oil and coolant lines. Allow 3–5 hours for removal of the old unit and proper gasket sealing.
How much does Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39 cost?
▾
Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39 is $193.05 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39 in stock at Lab Work Auto?
▾
Yes, Labwork Turbocharger For 2004-2007 Subaru Impreza WRX STI 2.5L RHF55 VF39 is currently in stock at Lab Work Auto.
Specifications
- SKU
- F8-012222