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Formerly EFI Logics — Expert ECU tuning, performance parts installation, and custom builds for Subaru WRX, STI, BRZ, and sport compact vehicles. Data-driven results in Bethel, CT.
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#DC2626
Alizarin Crimson
220, 38, 38
0, 72, 51
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Cod Gray
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0, 0, 0, 94
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Golden Sand
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EFI Performance, formerly known as EFI Logics, is an automotive performance specialist focused on Subaru and sport compact vehicles. Based in Bethel, Connecticut, the company works with models including the Subaru WRX, STI, and BRZ, helping owners pursue performance goals through data-driven tuning and installation services. Its offerings include expert ECU tuning, performance parts installation, racing alignments, dyno testing, and complete custom builds.
EFI Performance also supports motorsports and showcases customer projects, dyno results, and racing updates through its gallery and online resources. The business highlights more than 15 years of experience and over 2,500 vehicles tuned, emphasizing precision engineering and diagnostic-led results. Customers can book a service or consultation to discuss a street build, track-focused vehicle, or other performance project.
Its EFI Performance Rewards program lets members earn points on services and redeem them for benefits such as dyno pulls, alignments, labor credits, and branded merchandise. The company also offers a parts shop and newsletter featuring promotions, new builds, dyno results, and events
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