Well I said I would test these plugs and see what would happen and over 5000 miles later the plugs are still working like the day I put them in. I inspected some of the plugs and the iridum tip is still like sparkling new, well at least pretty close to it and the nickel ground electrode is still in very good condition. My initial evaluation of these plugs was there was a clear difference in performance from my previous set of Autolite Platinum Plugs (Note: Both Plugs were gapped at .054). In my case, I noticed a slight pickup in throttle response, and overall performance especially in the top end of the power band seems to have benefited as well. Though I have no dyno proofs to back up the claims, these plugs have shown incerease in power on other vehicles dynoed.
For those that were doubtful these plugs would even last these first 5000 miles, well I'd thought you folks like to know. If anyone is interested in a set of these plugs just send me an email, it's in my sig...Thanks
