The new, patented Split-Fire spark plug's V-shaped ground electrode broadens the flame pattern without excessive erosion tendencies. The spark kernel is larger than those of a conventional plug, ...

If you consider your spark plugs little more than disposable engine parts to be replaced for every event or two, you're missing out on a valuable engine-tuning tool. Not only can the correct plug ...

Spark plugs are necessary for gas-powered engines. However, they're not all the same, and they can come in different shapes ...