That these are real NGK plugs? NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack https://a.co/d/d22J3SG
I don't know if they are real but I have a set at home. So many different vendors selling it on Amazon too
I remembered 10 years ago I bought a set of Denso/NGK branded plugs, they were iridium but only rated for 60k miles, not like the OEM stuff that was rated for 120k miles. I'm still using those 60k miles plugs, no issues.
With Denso plugs you need to be up on your P's and Q's and find wire terminology The ZU fine wire plugs can be platinum iridium but the fine wires made for racing and they don't last nearly as long as the long life p series or PQ series original plugs those designations of all changed over the years on purpose so it makes it even more difficult to keep up with all of the things if you can grab a copy of a nipendenzo catalog You can see all this stuff call that You generally don't want the ultra fine wire You want the long running long life what used to be called PQ series plugs back in those days those things cost $17 a pop and could be $24 x 4. I'm sure NGK has a similar lettering and similar system for fine wire racing versus long life iridium.
