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Agency Power Billet Turbo Wheel Upgrade VF39 Turbo Subaru STI 04-07


Agency Power


Does your turbo need to be replaced in your Subaru STI?  Agency Power has the perfect upgrade to give your STI some more daily driveable horsepower with our new VF39 GSX turbo.  The billet wheel inside the stock housing features 18% more blade area for more mid to top end power.  The turbo also has the discharge pipe changed to a slip fit design.  The modification requires you to send in your stock turbo or core to be modified.  We recommend tuning and other bolt-ons to take full potential of the upgrade.


  • Requires turbo to be mailed in for modification
  • Features billet wheel inside stock housing
  • discharge pipe changed to slip fit
  • Designed for the 2004-2007 Subaru STI
Agency Power Industries LLC was developed out of the need to provide quality, functional, and fashionable racing products. Starting from sway bar endlinks for the Subaru WRX back in 2003, Agency Power now has over 300 part numbers for cars ranging from the STI, EVO, M3, 996, TC, and more. Based out of Arizona, Agency Power has established itself as one the core aftermarket companies for Subaru WRX STI and Mitsubishi EVO products. With new focus on the Porsche and BMW market, Agency Power is constantly developing new functional and race proven products. With dealers worldwide, the AP brand is recognized globally. Working with top distributers and tuners in the USA, AP can be found in Singapore, England, Canada, Australia, South Africa, and other parts in the EU.

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