I have an 06 GT and previous owner installed higher injectors and cold air intake and not sure what else,anyway my OEM coils have started to fail so I thought I would buy all new ones and I got a good deal on some granatelli 45,000 volt coils. My question is will I have to change anything else ignition wise or will these work OK. I am by no means a mechanic although I can work on most things. If these won't work I will return them and buy a lower voltage. I was told by some they would and others they won't work so asking here for advice.