I've got the same issue as andysouza. So many opinions and after reading 10 pages of them and I haven't settled on one. I have a 05 ZXW 5speed completely stock.
I want to change the plugs and I already bought some Denso Platinum TT (twin tipped) plugs before reading this because of the advance auto discount ($5 for 4 plugs) and the good reviews on their site.
Now I don't care about getting 5hp out of my car. I drive highway 80% of the time and I want the most out of every gallon of liquid gold because it's up to $4/gal now.
What should I do?