Spark plug NGK or BRISK

I went with the NGK rutheniums as they're also rated for 100k and were slightly cheaper on Rock Auto than the iridiums. Supposedly they maintain fuel efficiency longer over their life than iridiums

I run NGK on my 15. The car runs great doesn’t miss. I used OEM Denso 5339 but they lasted 10-15k but then I tried NGK 92182 and they’ve lasted bout 40k so I’ve had no issues with them both of them Iridium.

Stage 2 EQT E85 and NGK 91006 here, but I only order from NGK directly.

NGK Laser Iridium 94124 is the OE plug. Just stick with the OE Plug.

I’ve been running Brisks for 30k now and haven’t had any issues

Brisks are great plugs. Do be warned however, their groundstraps are softer than others and open gap much sooner vs other plugs. So you'll be checking them much more often and changing them sooner than the usual 10-15k tuned interval.

I went to Brisk ER12S a few weeks after going 1+ tune which are one heat range colder, same fitment as MK7.

For spark plugs I always used NGK because that's what Motorcraft actually uses if I remember correctly. Autolites are complete garbage and always fouled out the few times I used them.

I bought these when I did my last tune up and plug swap just to try. I noticed zero difference in power or mpg.

I wouldn't do the Brisk plugs if you're not tracking it hard. They susceptible to fouling up unless you drive it like you stole it every time.