vs
Spark plug Denso or BERU
I run [Denso 5749](https://www.densoproducts.com/denso-5749-ikh01-24-iridium-racing-plug) non projected tip plugs with my FBO IS38 car.
They're 1 step colder, and non projected so the risk of a strap breaking off [\(like this\)](https://i.imgur.com/gdJFaJ4.jpeg) are extremely rare.
Pros: strap breaking extremely rare
Denso or Bosh are the best you can return and get new ones
Pros: best quality
Use NGK and if you can’t find them then go Denso. The only 2 plug brands I would put in a Honda.
Pros: reliable plug brands
Vehicle:
Honda
My 2010 RX350 with the same V6 has 170k on it and still gets me 24 MPG - Denso factory plugs are life, prove me wrong.
Pros: excellent longevity, good fuel economy
Vehicle:
Lexus
Mileage: 170000 km
NGK OEM equivalents or Denso IK22 for a slight bump in performance.
Pros: slight bump in performance
Vehicle:
Honda Fit
I’m running Denso plugs in my car…no issues to report.
Pros: no issues
I’ll stick with NGK and Denso.
Pros: reliable brands
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 got some phony Denso marked spark plugs
Cons: phony spark plugs
Porcelain tip fell off one Denso spark plug in cylinder 1. Doing less the 200km distance. Motor is f@$ked.
Cons: motor is f@$ked
Mileage: 200 km
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