Dynatek, Dyna-S ignition module. Dual fire - 70-99 Big Twin (excl. TC) and 71-03 XL Sportster (NU) 508793 including chrome plated

including chrome plated

Good Luck Pin on Collar

models with T-bars will need to buy risers (sold separately)

And buy his support crewneck

red - brake light

Dynatek, Dyna-S ignition module. Dual fire - 70-99 Big Twin (excl. TC) and 71-03 XL Sportster (NU) 508793 including chrome platedDyna S ignition module for dual fire applications. Comes complete with rotor. Can be used for single or dual plugged heads. The required mechanical advance unit must be purchased separately. Note: Dyna coil recommendations: Dyna 5 Ohm for street use, Dyna 3 Ohm for race use. Note: It is recommended to use ignition modules & coils of the same manufacturer. Intermixing different brands may cause premature failure. Note: Difference between Single & Dual