I plan on doing the spark plugs soon just picked up NGK Iridium plugs.
I put in NGK Lazer Iridium in mine about 60k ago and they've been fine.
I had to pull champions that were hardly worn. NGK ran a lot better.
I did absolutely nothing apart of spark plugs and oil change . I had E90, 188k km, 330d until it meet it's end when I crash it to railguards. it never showed me any lights or anything so I would say around 60-80$ tops.
Personally I’m running EQT’s stage 1+ tune and I just went with the recommended plugs (NGK 4905s) for peace of mind. I think it’s worth the extra couple bucks for my sanity
I'm using oem ngk plugs changing every 2nd oil change so around 16,000km
I only use NGK or Nippon Denso plugs, for a reason after a career as a technician.
just did my wife’s Nissan rogue and it needed NGK spark plugs that were around $35 each.
I stopped buying plugs from eBay and Amazon years ago after getting what I can only assume was a bunk set for my BMW. They looked the part, but caused the engine to run rough.
I stopped buying “NGK Iridium” plugs on eBay AND Amazon a while back. They’re nearly all chinesium knockoffs.
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If choosing spark plug across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare spark plug across these categories:
In March 2026 on PartReview, spark plug NGK were overall better than OEM BMW.
In March 2026 on PartReview, spark plug NGK were overall more popular than OEM BMW.
By vote balance, spark plug NGK surpassed OEM BMW:
By number of reviews, spark plug NGK surpassed OEM BMW:
In March 2026, according to PartReview, spark plug NGK led more car-specific ratings than OEM BMW:
NGK are chosen by owners of cars such as: Ford Mustang, Hyundai Sonata, Mazda 3, Volkswagen Golf, Audi A4, Ford Focus, Honda Civic, Honda Fit, Toyota 4runner, Volkswagen Jetta, Volkswagen Passat, Volkswagen Tiguan, and others.
Spark plug OEM BMW have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of spark plug NGK with: Bosch, Denso, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.
Also available: comparisons of spark plug OEM BMW with: Bosch, Denso, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.
You can also see who is better among other spark plug manufacturers: Bosch or NGK, NGK or Denso, NGK or Autolite, NGK or Champion, NGK or AC DELCO.
