Seller notes

Harddrive Performance Coils. Fits 30V-HP end posts, '80 - '84 BIG Twin w/electronic ignition. Dual Fire, 4 OHM. Features:Increased spark performance Dual Fire and Single Fire applications ION Sense feedback for perfect compatibility with stock Harley EFI ECU Engineered and produced by an Industry leading manufacturer High power 30,000 volt coil typically increases peak spark voltage by 20% or more Improves starting, stops high speed miss fires, increases mileage and overall performance...

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