Review on 🔥 High Performance Quicksilver 898264001 AC Delco MR43T Spark Plug by Curtis Donjuan

Those are just spark plugs right? Not right! I fitted them to my 4.3LX outboard motor and within the first few hours a cylinder burned out on the first cylinder. (identical to the other guy who gave one star). Hmm, that was weird. So I installed another one and no problem. **** Then last weekend I was driving cautiously back to the dock when at first it sounded like I had blown a head gasket. Then I noticed PORCELAIN flying out of the metal threaded base on cylinder number 4! (Due to the weak crimping process around the china) Oh my god I've never experienced this before. You don't see that every day! Even with my 850 hp engines! So 2 out of 6 spark plugs are defective. Guess what I do with the remaining four spark plugs? Yes, I throw them in the trash where they belong. because my last return date was October 11th. (ordered on 9.9.)