MAXX 9937 8 Pack Direct Fire Coil On Plug 2003-07 Chrysler Dodge Jeep 5.7L Hemi. This product data sheet is originally written in English. THIS LISTING IS FOR 8 COILS.Are a direct replacement for OEM coils and produce 10% more spark energy. All MAXX Performance coils feature American engineered high tech bobbins, high temperature shock resistant epoxy, magnetically optimized silicone steel cores and use brass contacts to further enhance the transfer of spark energy to the spark plug. Primary Resistance: 0.47 Ohms. Secondary Resistance: 6.1 k Ohms. Maximum Voltage: 37,000 Volts. MAXX Performance E-PX Coils are a direct replacement for OEM coils and produce 10% more spark energy. This item is in the category "Vehicle Parts & Accessories\Car Parts & Accessories\Ignition Systems & Components\Ignition Coils". The seller is "maxx-performance-products" and is located in this country: US. This item can be shipped worldwide.