Quote Originally Posted by Wesman View Post
I have AC Delco Iridiums (made by NGK, same as Iridium IX's) in my car and they are great. I highly reccommend them for N/A applications.

Why anyone would bother putting copper plugs in a newer car is beyond me. Unless you go through plugs like crazy, they are a waste of time and money. They are a bitch to change in our cars, doing plugs every 20K is just plain stupid IMO. Go with Iridiums, they are very resistant to gap erosion and will last you a damn long time.
+1 ..