Since its inception back in 1973, HKS has never strayed from its mission to manufacture only the best products to tune your automobile. HKS is a firm believer that driving should be pleasurable and is dedicated to offering a quality lineup of parts that make that a reality. Thanks to its unwavering commitment and success, it has become one of the most popular aftermarket choices among tuning enthusiasts all around the globe. HKS is constantly expanding and improving its line of products to incorporate the latest cutting-edge technology and cover greater applications. That said, HKS has just announced the availability of its new Fuel Upgrade Kit for the Subaru WRX STI. 

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HKS’ line of fuel injectors (and upgrade kits) are precision units engineered to deliver the fuel needed on high-performance applications. When your vehicle’s horsepower is limited by the factory fuel injectors, larger HKS injectors can be used in addition to or to replace the stock injectors altogether. In short, upgrading the fuel system is a must when adding power to your Subaru WRX STI. The HKS Fuel Upgrade Kit provides a complete fuel upgrade system with a fuel pump and injectors for a precise and easy fitment with guaranteed fuel system performance

The HKS Fuel Upgrade Kit for the Subaru WRX STI is designed with the latest-generation BOSCH Top Feed type fuel injector. All injectors have undergone and passed the spray test, and similar performance injectors are picked up and packaged in one kit for each specific car. The improved injector performance results in a shorter injector dead time. (1350μsec => 900μsec at Voltage 14V and Fuel Pressure 300kPa)

Two O-rings and a spacer(back-up ring) have been added to the fuel line connector for better sealing. The stock harness connector converter is also included with the kit. The HKS Fuel Upgrade Kit for the Subaru WRX STI comes with the same fuel pump in the previous fuel upgrade kit. Replacing the connector, as well as small modifications of the fuel case, is necessary when installing on a GRB/GVB model. 

Fitment:

• 2014-2021 Subaru WRX STI 4D
• 2008-2014 Subaru Impreza WRX STI 5D
• 2011-2014 Subaru Impreza WRX STI 4D
• 2004-2007 Subaru Impreza WRX STI 4D

Note: The previous HKS fuel upgrade kit (PN: 14007-AF001 and 14007-AF002) will be discontinued. 

Learn More and Purchase Your HKS Fuel Upgrade Kit Here!

If you have any questions, please do not hesitate to contact us. You can reach us by phone at 1-480-966-3040 or via email at [email protected]