ok i have been searching this site for a few hours now (yes i know i need to get some friends....but my car is my best friend..so that is how it is justified)...anyway i have seen many threads on spark plug choice....and a lot of you are running the 4+ plugs......i have not run a set of these before...but i do index my plugs....so are these new 4+ plugs pretty much the same thing?
4speedterror
