{"product_id":"harddrive-hd-performance-coils-hp-coil-efi-tc-2007-2017-820-60411","title":"Harddrive HD Performance Coils - HP Coil EFI TC 2007-2017 — Harley-Davidson Road King, Electra Glide Ultra Classic, Street Glide (2007-2017)","description":"\u003cp\u003eHarddrive HD Performance EFI coils for 2007-2017 Harley-Davidson Twin Cam engines, delivering 30,000 volts with ION Sense feedback compatible with stock EFI systems. Factory-engineered ignition upgrade that improves cold starts, eliminates high-speed misfires, and increases fuel economy.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e30,000-volt high-power output\u003c\/li\u003e\n  \u003cli\u003e20% peak spark voltage increase over stock\u003c\/li\u003e\n  \u003cli\u003eION Sense feedback for EFI compatibility\u003c\/li\u003e\n  \u003cli\u003eDual Fire and Single Fire capable\u003c\/li\u003e\n  \u003cli\u003eImproves cold starts and fuel mileage\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 10-2005\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 191361439476\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\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits 2007-2017 Harley-Davidson Twin Cam V-twin engines with EFI systems.\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 is engineered for direct compatibility with Harley EFI control units — no tuning required.\u003c\/p\u003e\n\u003ch3\u003eWhat's the voltage increase over factory coils?\u003c\/h3\u003e\n\u003cp\u003eTypically 20% or more peak spark voltage increase, which translates to stronger spark at full RPM and in lean-burn conditions.\u003c\/p\u003e\n\u003ch3\u003eDoes this help with cold starting?\u003c\/h3\u003e\n\u003cp\u003eYes. The higher spark energy improves cold-start reliability and reduces cranking cycles in winter or after long storage.\u003c\/p\u003e\n\u003ch3\u003eWill these stop high-speed misfires?\u003c\/h3\u003e\n\u003cp\u003eYes. The increased coil output eliminates high-speed misfires common in stock ignition systems under load.\u003c\/p\u003e\n\u003ch3\u003eDo I need to rejet my carburetor or reprogram my ECU?\u003c\/h3\u003e\n\u003cp\u003eNo — these coils work directly with your stock EFI system. Reprogram is not necessary for bolt-on installation.\u003c\/p\u003e","brand":"Harddrive","offers":[{"title":"Default Title","offer_id":53036026331247,"sku":"820-60411","price":82.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_5d06d652-c509-404c-b96e-d7e5cfa77f25.png?v=1779564461","url":"https:\/\/vtwinbikers.com\/products\/harddrive-hd-performance-coils-hp-coil-efi-tc-2007-2017-820-60411","provider":"Vtwinbikers","version":"1.0","type":"link"}