Review on 🔥 NGK Iridium IX Spark Plug 5464 BKR5EIX-11 - Pack of 4 by Nicholas Erickson

This is the third time in 12 years that I have replaced the spark plugs on my 1999 Miata Sporty aka Silver-Bullet. 14,000 original miles and as I was preparing it for an upcoming security check, I immediately heard an audible "miss". Just don't ever take it out on the road too often again just because I don't trust parking attendants and other drivers, especially those with broken blings! 4 cylinders = 4 candles. The replacement was extremely simple, easy and hassle free, as was the #2 bottom O2 sensor that I replaced 5 years ago. Luckily all gap sensors were factory calibrated and I rechecked them 4 times. all within a .043 (1.1mm) and 3/4" (19mm) gap. RESULT - Nothing but the perfect tone of a harmonic, subtle hum. like new. all over again. What's the difference. I have put that on rotation and it ran even smoother and more agile than before. These NGK Iridium IX spark plugs are not only highly recommended, they MUST BE FITTED.