Oh man, I just bought these from the seller. They are already installed on my pathfinder, should I be worried ? http://www.ebay.ca/itm/6-of-NGK-PLFR5A-11-22401-5M015-6240-LASER-PLATINUM-SPARK-PLUGS/122382264541?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Pathfinder seems to be run...