8pcs Laser Iridium Spark Plug for 12621258 CHEVROLET 41-110

which one's real and which one's fake i'm going to show you how to tell the [Music] difference all right ladies and gentlemen so today i had a little issue and i decided to go ahead and do a little video on it for you i realize this is not the type of video you're used to seeing on this channel but i thought this might be informative might help a few people out so you don't get ripped off so just a little background i mean most of you know on this channel pretty much every vehicle we build uh you know it's either boosted or it's on nitrous so we generally don't use these iridium plugs these are usually the first thing to go uh we usually go you know like our ngk br7 efs or for n a stuff uh you know i'll use a ngk tr6 but anyway i actually bought these plugs for my avalanche you know it's pretty much bone stock i was just looking for a replacement plug didn't want to mess with it a lot s