Spark plugs are an essential part of a car's ignition system. As the name suggests, they provide a spark of electricity that ignites the fuel and air mixture, and gets the engine up and running.

Changing an engine's plugs should be a relatively simple maneuver. But not if you've built the engine bay so the motor barely ...

We may receive a commission on purchases made from links. A spark plug isn't just one standard item, and the market is full of different types, materials, and designs. They're each made to run best ...