8mm-diameter plug wires use the same Spiro-Wound conductor featured in our ‘Pro 8’ line of wires with a resistor wire that has 1/10th of the resistance of normal resistorcore plug wires, yet still minimizes the interference that can play havoc with stereos, CB radios or sophisticated electronic ignitions.


Fits all 4-speed FL and FX models from late 1978 thru 1986, Softail® models from 1984 thru 1999, Dyna Glide® models from 1991 thru 1998, and Sportster® models from late 1978 thru 1985.

These wire sets are not designed for racing applications, and must be grounded with the included grounding kit.