Just wanted to thank you for posting this. I have been into the Domestic car/truck scene for a while and am now venturing into the Import scene with my 2003 Civic EX. I hadn't been able to find any good info on the web about plug replacement or any good detail like you have posted here. It's greatly appreciated. With 83K miles on my Civic it's about time to replace the old plugs and put in something new.
Looks like I'm going to give the NGK iridium's a try.
Cheers,
Joe
