I have to get new spark plugs for my 03 Odyssey. My Honda guy will install them while doing other work, but he said they have to be NGK plugs (the dealer charges $26.99 each for them, so I figured I could do better). What is the difference between these plugs, other than price?
NGK Laser Platinum Spark Plug $13.69
NGK Iridium IX Spark Plug $7.99