Review on Bosch Automotive (9656) Fine 🔥 Wire Double Iridium Spark Plug - Individual by Chris Bertoli

I bought 6 spark plugs for my '97 Jeep Grand Cherokee 4.0. I've noticed that since replacing the old copper spark plugs, the jeep has started without hesitation. There doesn't seem to be any difference in performance or gas compared to boilers. They are pre-gap but I checked the gap with Wire Gap just in case and they were really gappy. Before you buy, look for reviews from people who have bought them for the same vehicle and engine as I've heard some people have had issues with them. The only downside to candles (at least for me) is the price. However, if you compare the lifespan of iridium and platinum candles, it's not that bad.