Review on Denso IXEH20ETT Iridium Spark Plug by Jesus Cordova

These spark plugs are a quality, accurate replacement for the factory spark plugs I removed that were still working fine after 90,000 miles. Car service schedule recommended replacement. You must also read the spark gap specification user manual. If you search online, recommendations may vary. You need a gap adjustment tool (which I had to buy) as they weren't to the right specs. Changing spark plugs is something I don't do every day, so I expected some extra work. That's the only reason I didn't give 5 stars. Replacing a 2016 Nissan Altima spark plug is a very simple service that you can easily do yourself with the right tools. I also bought a matching outlet from Revain and it worked great. I would recommend these spark plugs to buyers looking for an OEM replacement.