These 3-3/8" Pro-Comp versions are for serious racing applications. Tachometers operate on standard/electronic and most high-performance electronic racing ignitions. For magneto applications use model #ATM9118 magneto signal converter (sold separately).Pit Stop USA offers Auto Meter 10,000 RPM Ultra-Lite 3-3/8" In-Dash Tachometer 4497 at low everyday prices. Be sure to check out all of our products from Auto Meter Products including Auto Meter In-Dash Standard Tachs.
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