The E3.619 Ford Coyote Coil-on-Plug Racing Coil is engineered to deliver exceptional performance, offering more than double the energy output of a stock coil. Designed with a stainless steel spark plug contact ring and ferrite lug, this coil effectively suppresses EMI/RFI noise, ensuring optimal signal integrity. With optimized resistance and inductance values, the E3.619 coil increases output at higher RPM levels, making it ideal for high-performance racing applications, both naturally aspirated and forced induction. The spark plug boots are molded from a special high-temperature 550-degree F silicone compound, providing superior heat resistance and durability. Specifically designed for the 2011 to current 5.0L Ford Coyote engines, the E3.619 coil is perfect for racing enthusiasts looking to maximize performance. Pair it with an E3 Spark Plug featuring DiamondFIRE Technology for even better results. E3 Spark Plugs has designed this coil to meet the strictest quality standards and ensure trouble-free operation in motorsports applications. Coils have been tested per CARB standards and are functionally equivalent to OE applications.