I put in Bosch last summer and they worked great. But that was only because my other plugs were shot and these were new. They didn't hold up too long. I still have them in and am experiencing loss of power as before, and possibly a misfire.

I'm changing my wires this week to the Taylor Spiro Pro, and am changing my plugs to AC Delco Rapdfire and will expect much better performance.

well i see no one has said anything in this topic for 5 months... when i put the platnum 2'* in my car about a week after i got it back from getting the new engine.. the guy that swaped the engine put new iridiums in it ... the platnum 2s made it snapier and pull a lil more above 5 grand..... then about 2 months ago i had some extra bucks so i tried out a set of platnum 4'* and i found the same results only a lil more.... i heard someone at autozone talking about a lower temp bosche.... would that work better for our car then? since we have the problem of them burning too hot and wearing out to quick?.. i think i'll try a set of those ngk split fires next...