Accel Ignition Coil is a high quality, direct fit replacement ignition coil. It increases throttle response and idle quality. Its design maximizes energy and voltage output. Accel Ignition Coil features advanced bobbin technology, highly specialized silicone magnetic steel cores, along with optimized winding, resistance and turns ratios to delivery 10-15% more energy than the OEM coils. It is responsible for converting the 12 volts stored in the battery into thousands of volts that are directly delivered to the spark plugs to start the vehicle. Accel Ignition Coil transforms low voltage to high voltage currents so as to fire up the spark plugs. Reliable for granting strong ignition power to most vehicle applications. Hurray!