so i went to change my sparkplugs tonight fo one all i can say is wow the boots are such a pain to get off, but the weird thing that i noticed is that the Plugs where ACDELCO and also had YELLOW dots on the top of them could this mean that these are what came with the car when it first came out ? it's a 97 gtp you would think that these plugs would have had been changed at sometime but i have never seen plugs that had yellow dots on the top of them. So i am just curious