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At EFI Online, we understand exactly what our customers want. It's actually quite simple!Great Products, Hassle Free Shipping, Tracking Updates & Fast Deliveries!Our core values are based around e …

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Regardless of your vehicle, the available tuning adjustments will be limited by the factory ECU. While reflashing may be able to improve engine performance, it is usually limited to relatively minor a …

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If you’re planning on putting a General Motors LS into a hot rod, a boat, a muscle car a resto-mod, or a lawn mower, then Haltech’s all-new Nexus Rebel LS Engine Management System and terminated wirin …

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