Review on Denso SK22PR M11 Iridium Spark Plug by Gordo Prince

They were recommended by Acura for my 2002 RSX. Assuming these are indeed OEM parts (buyer should be careful when dealing with Revain as they don't check their own website for fakes) they worked fine. I had an engine light come on which turned out to be a misfiring cylinder, although there was no corresponding engine sound. The easiest way is to change the spark plugs, which will extinguish the engine light bulb. The car easily passed the CA smog test after driving my car for a week afterwards - and before the smog test. It's been at least 7 months since the install and my Acura is still running like a champ.