On my work ute I have standard coils 160,000klm old the car has been making 400rwkw for the last 40,000klm of its life, run a 10.4 quarter mile,towed cars from melb to qld in near 40 degree heat ,gone to the snow no less than 15 times in sub zero conditions (see pic). I also have an alloy cover plate (see pic) and have NEVER HAD AN ISSUE WITH COILS. We have also made well over 500rwkw with another car using stock coils. Strawberry you obviously have other problems and are blindly blaming the coils.