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Make your classic drive like a modern fuel injected vehicle, including better cold starts, smooth drivability, and improved fuel economy. Sniper Stealth 4500 was designed to be installed at home in your garage with a few tools and the support of Holley's comprehensive installation manuals and online videos. The high resolution 3.5” LCD touchscreen user-friendly setup wizard has you answer a few simple questions about your engine and the system will begin self-tuning with no laptop or tuning experience required. If you're looking for a high-performance fuel injection system that delivers power, efficiency, and ease of use, look no further than the 4500 EFI system. Take full control and make the conversion to EFI with ease with many additional accessories such as HyperSpark, air cleaners, digital dashes, and more.