The Daytona Twin Tec Ignition system offers adjustable performance tuning for both stock and modified engines. Featuring selectable advance curves, multi-spark technology, and easy tuning adjustments, this ignition module delivers improved starting, smoother cruising, and reliable performance. Features: Adjustable advance curve families for stock and modified engines Selectable multi-spark mode for easier starting and smoother cruising Five rotary switches for simple tuning adjustments Adjustable timing, advance slope, mode selection, and RPM limit RPM limiter adjustable in 100 RPM increments Coil outputs protected against short circuits Designed for use with OEM coils under 1 ohm primary resistance Compatible with low-resistance spiral-core or carbon-core suppression plug wires Includes easy-to-follow installation instructions 12V power adapters available separately for bench powering modules Made in the USA Note: Will NOT work on fuel-injected models.