Review on Genuine Hyundai 18846 11070 Spark Assembly by Daniel Morris

I bought the exact same spark plugs from the dealer for $22 each. When I changed it to 70k, the engine ran like clockwork. After 30,000, the #1 cylinder plug failed, heralding a misfire. I bought a complete set of these forks for $14.95 each. They work for now BUT these forks need to last at least 100,000. The first set went for 70,000 and then one of the spares only lasted 30,000. So it's up to you to judge the quality of the manufacturer (which is NKG). Once out of warranty I'll switch to another manufacturer if they fail as well.