Accel Super Coils produce up to 15% more spark energy than OE coils. They offer better throttle response, optimize fuel mileage, and install in less than an hour. Unleash your engine's full potential by restoring horsepower. These coils have advanced bobbin technology, highly specialized silicone magnetic steel cores, optimized winding, resistance, and turn ratios to deliver more energy than OE coils. Specialized high-temperature epoxy resists shock and vibration and increases thermal conductivity. These Super Coils are direct replacements for OE coils and will work with all factory sensors.