Give your Subaru Outback or Legacy the upgrade it deserves with this high-performance VF40 billet turbocharger from PTTURBO.COM — engineered for quicker spool, better durability, and OEM-perfect fitment.
This upgraded unit is a direct replacement for the factory VF40 turbocharger and fits seamlessly into 2005–2009 Subaru Outback and Legacy GT models. The standout feature is the 7075-T6 billet aluminum compressor wheel, CNC-machined for superior strength, lighter weight, and faster boost response — all while retaining the original turbo size and fitment.
Key Performance Upgrades:
- Billet Compressor Wheel: Made from aerospace-grade 7075-T6 aluminum, CNC-machined for strength and precise airflow — provides quicker spool and better throttle response than cast wheels
- VSR Balanced to 100,000 RPM: Assembled in the USA and dynamically balanced on our high-speed VSR machine for smooth operation and long-term reliability
- OEM Fitment: Bolts up directly with no modifications required
- Complete with new wastegate actuator and gasket kit for fast, hassle-free installation
- Durable Cast Iron & Aluminum Housing: Designed to handle high heat and prolonged use
- Warranty: 1-Year Manufacturer Warranty
OEM & Interchange Part Numbers:
- OE/OEM: VF40 / 14411AA510
- Other PNs: 14411AA5109L, 14411AA511, 14411AA51A, 14411AA51B, F51
- Interchange: 11657595351, 5303-970-0118, 5303-970-0181, 5303-988-0163, 5303-98
Vehicle Compatibility:
- 2005–2009 Subaru Outback 2.5L Turbo (GT Models)
- 2005–2009 Subaru Legacy 2.5L Turbo (GT Models)
Why Choose This Turbo?
- Faster spool = better acceleration and low-end torque
- Billet compressor wheel adds durability and power potential
- OEM fit — no need to modify lines or mounting points
- Comes complete with actuator & gasket set — everything you need to install
Installation Notes:
This turbo is a drop-in replacement, but professional installation is strongly recommended. Always prime the turbo with engine oil and inspect oil feed lines before startup. Replace your oil, air filter, and oil filter during installation to protect the new turbo.
Experience a factory-fit turbo with performance-focused upgrades — power, response, and reliability all in one.
California buyers: Sales tax applies
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About This Billet Turbo — Subaru Outback / Legacy GT (VF40)
The VF40 is the IHI turbocharger used in the Subaru Legacy GT and Outback XT from approximately 2005 through 2009 — a period when Subaru offered genuinely quick turbocharged wagons and sedans with the EJ255 2.5L boxer engine. The VF40 is a mid-frame IHI unit that produces strong mid-range boost for the Legacy and Outback GT applications. This billet version replaces the original cast aluminum compressor wheel with a billet machined wheel for improved efficiency, higher flow capacity, and greater durability under sustained boost.
Part number 14411AA510 is one of the OEM reference numbers for the VF40 application. This billet unit is a drop-in replacement that maintains compatibility with factory plumbing and the OEM wastegate actuator.
Billet vs. Cast Compressor Wheel
- Billet wheels are machined to tighter aerodynamic tolerances than cast equivalents
- Higher tensile strength resists deformation at elevated boost and high shaft speeds
- Improved blade geometry increases compressor efficiency and reduces heat generation
- Cast wheels on high-mileage turbos develop micro-fatigue cracks — billet eliminates this risk
Fitment Confirmation
The Legacy GT and Outback XT used several turbocharger variants across the 2005–2009 model years. Confirm your existing part number or OEM turbo stamp before ordering to verify the VF40 / 14411AA510 designation matches your application. PT Turbo in San Bernardino, CA stocks Subaru EJ-platform turbochargers and can confirm fitment from your VIN — contact us with any questions.
For the Subaru Outback/Legacy pre-installation oil system check and break-in procedure, see our guide to making your turbocharger last.
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