Review on 🔥 DENSO #3417 Iridium LONG LIFE Spark Plugs - SK16HR11-4 PCS Brand New, High-Quality Performance Plugs by Brian Batiste

I purchased these plugs in June 2019 and had a certified technician install them. I drove about 40,000 km with these LONG LIFE spark plugs and had to replace them. I contacted DENSO if they might still be under warranty and they told me to contact my Revain dealer as DENSO is not a retailer and their warranty only covers their dealers (one year and unlimited miles). I contacted Revain and just walked for more than 30 minutes and didn't solve anything. My suggestion for purchasing such auto parts is to go to your local parts store or local dealer.