Spark plug NGK or OEM Toyota

I have a MK6 GTI and I replaced the Spark Plugs using the NGK recommended ones from Rock Auto and they were the OEM replacements.

I have the projected NGKs and they work great.

I run these on my stage 2 2019. Runs great. Like zero knock. Sometimes idle seems a bit less smooth when engine really hot but tach holds dead steady. Ran a set for 5k, inspected and put back in for another 5k then replaced with a fresh set and have another 2k on the new set.

I use NGK... it's the same 1/16 turn instructions on my Suzuki outboard (also NGK) and I use the same method of 1/4 -1/2 turn. Been good with those over 6 or 7 changes.

I was told that the Motorcraft iridium's are made by NGK?

I opted for the NGK DIFR6D13, since these were suggested by a local Honda dealership. These seem to be perfectly fine for the CR-Z. No complaints at all.

I've been running the NGK "rs7" plugs 06K905601M in my wagon since I went IS20 with an APR stage 3 91 tune. Stock gap out of the box was .026. I've now put about 6k on them and have had zero issues.

I have NGK ruthenium’s and it is noticeably smoother at idle vs iridium’s. Literally zero idle “pop” or misfires

I do need to change the spark plugs. I haven't done that in 10+ years and 100,000+ miles. It just started misfiring slightly I believe (haven't checked the code yet), but it runs and drives well still.

I unknowingly sourced (6) NGK ILZKR7A Spark Plugs a year ago from eBay and installed them at 60K miles on my 3.6 VR6. I found out last week that the plugs were fakes. About a month ago I started getting random misfires. After detailing the issue in this thread here: https://forums.vwvortex.com/showthr...VR6-Cyl-2-Misfire-When-Taking-Off-Quick-From-Stop-Suggestions&highlight=Misfire I pulled the spark plugs and checked them last month and noted the gap was pretty far out of spec (weird for only being a year in), so I gapped them and reinstalled and the problem went a way for a few weeks. Last week I had another misfire, so I chalked it up to a bad batch of spark plugs and resigned to buy and install a new set.