Spark plug NGK or Denso

NGK Spark plug

Personally I gapped my NGK laser iridiums to .024 and I've had no issues what so over, I did however have issues with the OEM spark plugs when I pulled them out to which they were gapped at .054, which OEM spec is technically .034

Pros: no issues
Cons: issues with OEM plugs
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Denso Spark plug

Have some I'm waiting to try out in my turbo 4age after using bkr7e ngks for years. I mean denso is an A1 company and they offer heat ranges colder than NGK so probably worthwhile for my turbo engine.

Pros: colder heat ranges
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NGK Spark plug
wooki1
  • Acceleration:
Rating 5.0

I set the new ngk's i put in to 0.27 and I feel a difference already lot less hesitation off the bottom end felt like it would almost hiccup before gaining any power with the stock plugs. now i lay into it and it just goes fairly smoothly

Pros: less hesitation, smoother acceleration
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Denso Spark plug

2019 4 gen - dealer sparkplugs were part number ZC20HPR11 > Denso spark plug.

I’m from EU, Scandinavia and that part number were on my original ones I pulled out.

Vehicle: Mazda
Part number: ZC20HPR11
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NGK Spark plug

Have them for 15,000 miles on these and frankly can't tell the difference from (spec. plug) with original that it replaced. Gas mileage is no better and no worse.

Vehicle: Volkswagen
Mileage: 15000 km
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