vs
Spark plug Denso or OEM Audi
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
Within the last 8,000 miles New spark plugs
Pros: new spark plugs
Vehicle:
Audi A6
Mileage: 8000 km
Plugs(Denso IK22) coils(DENSO or Hitachi) and a valve adjustment, all due at 100k. They really do make them run better and much more reliably.
Pros: run better, more reliably
Mileage: 100000 km
I installed Denso a few weeks ago.
Pros: installed recently
Densos. Buy them off rock auto.
Pros: none
Cons: gapping suggested
Vehicle:
Volkswagen Golf
The Denso IHKs are my go to for the last 10k on their tune.
Pros: reliable, good performance
Cons: gapping info mixed
Mileage: 10000 km
Either one, but I found the Denso to be cheaper and easier to get. No issues with them.
Pros: cheaper, easy to get
Cons: none
Vehicle:
Volkswagen Golf
I bought the plugs from Toyota (Denso). I asked for the old plugs off. The plugs I got back were NGKs that were installed at the factory. I can’t say I notice a difference really (except new plugs did seem to make a difference).
Pros: new plugs made difference
Cons: no noticeable difference
Vehicle:
Toyota
Part number: 9008091180
I have the 24's, not impressed.
Cons: not impressed
Vehicle:
Audi
the densos work fine, the point of swapping is not for any performance gain, rather to prevent shattered ceramic from raining into your cylinders
Pros: work fine (normal use)
Cons: risk of ceramic shattering
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