Set of new performance 8mm Spiro Core Plug Wires (Yellow). Spiro-Pro core provides up to 10 times the conductivity of the stock standard carbon-core wires. These wires are available in multiple colors (see our other listings). These wires fit all Carbureted Big Dog Motorcycles models from 2003-11 (WILL NOT FIT FUEL INJECTED MODELS). If you have fitment questions, just drop us a message.
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