MSD Ignition Box Digital 6M-3L Marine Ignition 6564

MSD has raised the bar with their 6M-3L marine ignitions. They are fully-sealed units featuring single wiring connectors that make installation a breeze. Each ignition box is designed with three rotary dials and an LED display to simplify setting the cylinder select, start retard, and rev limiter--plug-in rev limiter chips and hard-to-read dials are a thing of the past. For diagnostic purposes, the LED displays can also be set to a "live" tachometer mode on V8s and will even display the battery voltage with just a quick turn of a knob. Boasting more features and higher spark energy than its predecessor, MSD 6M-3L marine ignitions are definitely performance upgrades your boat needs! Additional features and benefits include: * Large, easy to read LED display * Shift interrupt feature eases shifting * MSD's smoothest rev limiter yet, protecting parts and saving your engine * Records highest rpm the engine turned for last 20 minutes of run time * Easy setup of features with three rotary dials on the face of the unit * Built-in start retard adjustable in 0, 10, or 20 degree increments for quick, easy starts and extended starter life * LED display shows rev limit, highest rpm turned, cylinder select, start retard, battery voltage, and can be set to tach mode * Full delivery of spark energy and easy starting down to 6 V battery supply * Highly efficient, low-current draw for extended battery life * Fully potted housing to withstand demanding marine conditions * Sealed connector for clean wiring and trouble-free operation * Works on 4, 6, and 8 cylinder engines * Reverse polarity and overheat protection provide ultimate reliability * Can be triggered by magnetic pickup, amplifier, and points inputs