Review on NGK # 9029 Laser Iridium Spark Plug DILKAR6A11 - 4 PCS NEW - High Performance Ignition Solution by Alan Pfeiffer

These spark plugs are very similar to the standard spark plugs on my car, they were Denso iridium plugs. They have lasted me 60,000 miles and showed some visible signs of wear. These NKG Laser Iridium spark plugs are an improvement over the stock ones in my opinion as they are better shaped and appear to be made of better materials as well. Overall I think this is a good buy and worth the money. My reason for the 4 star rating is that I have yet to see how long they last and my concern is that the Denso spark plugs, which seemed almost identical, only lasted 60,000 miles and that is the reason why i chose these plugs which are a bit more expensive.