DOWN TO THE WIRE
SPARKPLUG leads can’t add horsepower, but they can adversely affect your vehicle’s performance. That’s why it’s important to select a good-quality set of leads to deliver juice to your plugs. Even though they’re simple parts with no moving elements, there’s surprisingly little information about how to choose the right leads for a given application. So let’s try to cover the basics.
The number-one job of any sparkplug lead is to transfer an electric charge from your ignition to your
