NGK spark plugs are used in all vehicle categories across the world. From the original engine to racing, NGK is one of the top spark plugs manufacturers.
It is important to install a high quality and, above all, suitable spark plug, because the costs of engine damage bear no relation to the price of a good spark plug. The correct heat rating is the most important factor when choosing a spark plug. A spark plug that is too hot may result in engine damage, under certain conditions, and a spark plug that is too cold can cause the plug to constantly clog. It is therefore important to use the same heat rating as the original plug for untuned motors. For sport and racing engines it is advisable to use a somewhat colder plug.