Kit includes ignition system, 8.5mm spark plug wires, single-fire coil and instructionsIgnition system has two advance curve families with adjustable advance curves to accommodate stock to wild engine modificationsFour rotary switches for adjusting timing and single/dual fire rpm limitDigitally set rpm limit (in 100 rpm steps), selectable single- or dual-fire modeSelectable multi-spark mode for quick starting and smooth cruisingCoil outputs protected against short circuitsUses the tachometer wire for the USB interface and comes with a connectorMade in the U.S.A.