{"product_id":"harddrive-hd-performance-coils-40v-hp-single-fire-coil-twin-cam-carb-820-60408","title":"Harddrive HD Performance Coils - 40v-HP Single Fire Coil Twin CAM Carb — Harley-Davidson (1999-2006)","description":"\u003cp\u003eHarddrive HD Performance 40V-HP single-fire coil for Twin Cam carbureted Harley-Davidson models, engineered to increase peak spark voltage by 20% or more. ION Sense feedback ensures compatibility with stock Harley EFI systems while improving cold starts, eliminating high-speed misfires, and boosting fuel economy.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-power 30,000-volt output\u003c\/li\u003e\n  \u003cli\u003eIncreased peak spark voltage by 20% or more\u003c\/li\u003e\n  \u003cli\u003eION Sense feedback for stock EFI compatibility\u003c\/li\u003e\n  \u003cli\u003eDual Fire and Single Fire capable\u003c\/li\u003e\n  \u003cli\u003eImproves cold starting and eliminates high-speed misfires\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Harddrive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 10-2001\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 191361439445\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Output:\u003c\/strong\u003e 40V-HP (30,000 volts)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 5 in (L) × 3 in (W) × 4 in (H)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China (Mainland)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Twin Cam carbureted V-twin motorcycles. Compatible with stock Harley EFI ECU systems via ION Sense feedback.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this coil work with my stock Harley ECU?\u003c\/h3\u003e\n\u003cp\u003eYes — ION Sense feedback technology ensures full compatibility with stock Harley EFI electronics without requiring a separate tuner.\u003c\/p\u003e\n\u003ch3\u003eDoes this improve fuel mileage?\u003c\/h3\u003e\n\u003cp\u003eYes — improved spark performance typically increases overall mileage, along with stopping high-speed misfires.\u003c\/p\u003e\n\u003ch3\u003eIs this a single-fire or dual-fire coil?\u003c\/h3\u003e\n\u003cp\u003eThis is a single-fire coil, but Harddrive also makes models compatible with both Dual Fire and Single Fire applications.\u003c\/p\u003e\n\u003ch3\u003eHow much does peak spark voltage increase?\u003c\/h3\u003e\n\u003cp\u003eThis 30,000-volt coil typically increases peak spark voltage by 20% or more compared to stock Twin Cam coils.\u003c\/p\u003e\n\u003ch3\u003eWill cold starting improve?\u003c\/h3\u003e\n\u003cp\u003eYes — the higher spark voltage and ION Sense feedback combine to improve cold-weather starts and reduce cranking time.\u003c\/p\u003e","brand":"Harddrive","offers":[{"title":"Default Title","offer_id":53036026200175,"sku":"820-60408","price":89.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_6d60612b-1b59-4af9-bc74-90513c65078e.png?v=1779565180","url":"https:\/\/vtwinbikers.com\/products\/harddrive-hd-performance-coils-40v-hp-single-fire-coil-twin-cam-carb-820-60408","provider":"Vtwinbikers","version":"1.0","type":"link"}