Review on Denso 3191 Spark Plug by Tony Buckley

As a hesitant buyer, I was impressed with the performance from this ignition part. As my tests showed, it provided a strong spark for my engine, resulting in smoother acceleration and improved gas mileage. The only drawback was the higher price compared to other brands on the market... Overall, i would highly recommend this spark plug to anyone looking to improve the performance of their automotive engine..