Kit includes ignition system, 8.5 mm 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 circuitsOptional USB interface kit and software (programs available on web site http://www.daytona-twintec.com/index.html) available for programming custom curvesRequires the use of an OEM timing rotor (OEM #32402-83 or PART #2101-0234)Uses the tachometer wire for the USB interface and comes with a connectorMade in the U.S.A.NOTE: Standard models are not legal for sale or use on pollution-controlled vehicles.