💥 Enhance Engine Performance with DENSO #5344 IRIDIUM Power Spark Plugs - IKH20 (6 PCS NEW) Review

Iridium Spark Plugs will not fit a 2007 Toyota FJ Cruiser, the description says they will fit, which is correct, but they will not work.

Denso, same brand as OEM, but they are much better than factory Toyotas (cheapest Denso they could supply). I noticed the difference straight away, smooth idling, I won't look at the mileage but I know it's gotten better than it was.

I have changed my overall rating from 5 stars to two stars. After running my car with new spark plugs, the mileage dropped by almost 1mpg. I plan to remove them and replace them with another brand. I have to add to this comment. After replacing the spark plugs, the mileage decreased and the problem was solved by installing a new lambda probe. So spark plugs are a good product and I would buy them again. The first review was premature.