vs
Spark plug BRISK or Denso
Spark plugs are simple too, just need the proper sockets and swivels. Took me about 45 minutes. That middle plug on passenger side is the toughest, but twisting boot 180 degrees and pulling it out from the front made it a breeze!
Pros: simple, easy to install
Cons: middle plug toughest
If you doing the spark plugs do the coils too. For the spark plugs use Denso 3499 (about 15 dollars each), for the coils use Denso 673-1310, (about 50 dollars each).
Vehicle:
Toyota Matrix
Mileage: 239934 km
Part number: 3499
Denso work quite well
Pros: work quite well
I use a Brisk n17yc.
Part number: N17YC
The plugs EQT recommends are compatible. I’ve been running Denso 5749 plugs for over 10k without issue
Pros: compatible, no issues
Mileage: 10000 km
Part number: 5749
i just put the densos in my '17 alltrack with a stage 1 tune and they run noticeably smoother than stock. i gapped them to 0.026" before install. it didn't seem like plugs would be that important for a stage 1 tune so i've been surprised.
Pros: runs noticeably smoother
Vehicle:
Volkswagen
My 2010 came with denso, replaced them with ngk at 100k, then at 200k replaced them with denso…not sure if it made a difference
Vehicle:
Honda Fit
Mileage: 100000 km
What plugs you're using may help. In my experience not all plugs are created equal. Brisk, for example, last maybe 5-10k miles before they're garbage. Whereas I can run NGKs for 15k+.
Pros: NGKs last longer
Cons: Brisk wears quickly
Mileage: 10000 km
Yes! I had a set of iridium spark plugs bought off Amazon that were counterfeit! They were denso but I didn’t discover it till about 40k miles later when I had a misfire. Pulled plugs and they were toast… first set lasted 120k and looked fine..
Cons: plugs were toast, misfire
Mileage: 64373 km
I tried Denso once and didn't have great luck with them.
Cons: not great luck
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