Review on NGK IZFR6K 11 Laser Iridium Spark by Nick Walsh

Arrived quickly, in excellent condition. However, it is important to check the gap on the connectors prior to installation as I had to adjust 3 of the 6 connectors to get the spacing to my machine specs. It's easy to do and I've always done it with every spark plug I've bought over the past 45 years. I still give them 5 stars as the machine has been running great since I installed it a few weeks ago and I've saved a ton of money by doing the work myself. By doing the work myself, I am confident that the work has been done correctly.