The new NGK spark plugs do not need anti-seize per NGK. The anti-seize is already in the metal.
So the BKR7EIXs are in and gapped to .028. Man what a difference. Everything is so much smoother and the engine doesn't feel strung out anymore.
Replace the spark plug with a genuine NGK plug.
I always get the oem brand because that works the best for your car. I get NKGs for my vw beetle
Iridium, tried and proven. Ruthenium looks like is an experiment by Ngk, I would give ti some time before these plugs prove themselves reliable before buying.
Denso TT iridium are so far the best ones I’ve tried in terms of performance
Another plug to give a try if you want to stay stock heat range - NGK's Ruthenium plugs LFER7BHX . Call it a placebo effect but after install cold start idle sure felt smoother and after 4000 miles they're running as good today as day one, gas mileage has been pretty good as well around 31 mpg +-1mpg @ 75mph. No cold start misfires. Overall a pretty solid plug for this engine and it's reasonably priced.
Brisks are throwaways that need regular attention by either regapping them every few thousand miles or replacing. You can run NGK 7437-9s for 20k in a stage 2 car without touching them. There's a big price difference so you get what you pay for.
No discernible difference to me, positive or negative. But since I am running APR stage 1, I followed APR's recommendation.
I installed brand new denso ik24 plugs gapped at .026 and I am still getting misfires.
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