Whether you've got a brand new Mustang GT or are dropping a Coyote crate motor into a classic 32 Lil Deuce Coupe, you need E3s ultra-high output Coyote Coil. With more than double the energy output of a stock coil, E3s Coyote coil features a stainless steel spark plug contact ring with a ferrite lug to suppress EMI/RFI noise and optimized resistance and inductance values which increase output at higher RPM levels. Our high temperature epoxy resists shock and vibration while providing excellent thermal conductivity ensuring extra-long life. Additionally, the spark plug boots are molded in a special high temperature 550 degree F silicone compound.