Wow, I would never guess a simple question could be so contraversial. I put plugs and wires in about a month ago - Bosh Platinum +4 and Autolite wires. Someone at the CEG site recommended replacing the old stuff (123K miles on the car) to solve a momentary misfire problem and it seems to have done the trick. I don't expect to have to change plugs and wires for another 90-100K, so spending $4 for a plug instead of $2 didn't seem like an extravagance. Good luck with whatever you choose.