Quote Originally Posted by tezepremillz View Post
hi, I have a 1997 cadillac sts seville northstar engine. I wanted to know how to change the spark plugs. what all will i need to change the spark plugs, Is just spark plugs and boots?. Also, when you buy spark plugs for your specific model car. Do they come pregrapped?
They are pre-gapped, but you should always check them before installing.