Bought 2 about a month ago and can't find anymore.So I called NGK and talked to tech dept. and they said was no longer being produced and to use BR8HS part#4322.I told her that it was weird because the last 2 i bought didn't have cardboard or plastic thread protector. I asked if NGK was getting boot legged.She told me to open box before i pay for them and if no thread protector don't buy them.Anyone else heard of this?

