NOLOGY HOTWIRES. RED. FITS FXD AND SOFTAIL MODELS WITH REAR MOUNT COIL 1999 TO PRESENT.
Source: Custom Chrome
HotWires"! work like an amplifier and are the only wires that increase horsepower. Energy from the coil accumulates in a capacitor in each wire, and then discharges all at once creating a spark 300 times more powerful than a conventional ignition system. Sold in sets.