JamesC

I got some conflicting information about spark plugs today so I wanted to check with everyone here before buying. Apparently the '01s came with an iridium plug so my original plan was to replace like with like and go with a Motorsport iridium plug. Then I talked to a Mustang nut (whos opinion I respect) and he said the hot ticket these days is to get NGK Coppers (which I think are TR55 for my car). When I went to the local parts store to pick up the NGKs they looked at me like I was absolutely nuts!! They said coppers run too hot and I'd be crazy not to get an iridium plug. So... what's the best plug for my stang?

Thanks in advance for any input and woo-hoo, broke my first post cherry!

cencalmatt

I'm running NGK's but I don't think they're copper. And I'm not positive but I want to say they are the tr55's.

punchymonkey

Hey goodquestion I was wondering the same thing