S&S CYCLE HI-4N Ignition Kit — Black, Programmable, for Harley-Davidson® – 70-86 Big Twin, 79-84 Touring, 82-84, 86, 89 FXR, 84 Police

⚡ The HI-4N ignition kit delivers increased power over stock ignitions and combines single-fire and dual-fire functions in a single, compact module.

All-metal housing improves heat dissipation and keeps the electronics mounted directly to the back plate for reliable thermal management and vibration resistance.

• Ignition advance and timing degree markings are machined on the metal flange for precise adjustments.
• Convenient cable notch in the housing simplifies installation and prevents cable damage.
• Sensor and magnet housings are integrated into the metal back plate to protect components during fitting.
• Sensor housings contain advanced flux concentrators with high-temperature-resistant samarium/cobalt magnets for accurate, reliable triggering.
• Electronics are fully enclosed to resist vibration, moisture, and dirt.
• Four rotary switches allow selection of ignition mode, advance rate, and rev limit with accurate, repeatable settings.
• Includes ignition module, supplied ignition coil, and correct-length spark plug wires.
• Made in the USA.
• Not for fuel-injected models.

Designed for straightforward installation and precise tuning, the HI-4N is a durable upgrade for compatible applications.