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Single-fire operation down to zero rpm for easier cranking and kicking
Inspection covers and derby covers are available separately
especially with extreme valvetrain geometry with big lift
Pure chopper
S&S HI-4N Performance Ignition Module for 1970-1999 Harley-Davidson Big Twin and 1986-2003 Sportster Clearance Sale Single-fire operation down to zeroS&S HI 4N Performance Ignition Module for 1984 1999 Harley Davidson Shovelhead, Evolution, and 1986 2003 Sportster Electronic ignition modules don't last forever, especially ones that live in the hot nose cone on Evos and Shovels. If you need a replacement, the S&S HI 4N offers adjustability OEM pattern replacements can't match. Single fire and dual fire function built into a single module All metal housing provides improved heat dissipation Ignition
US$ 19.99
US$ 299.50
US$ 22.14
