Modifying your spark plugs by "side gapping" is a legendary tuner trick. Does it actually boost horsepower, or is it just a ...

We firmly believe that sometimes even the longest-tenured hot-rodder should pause for a moment and recognize his or her journey in the hobby; take time to look back to where it all began and think ...

Gasoline internal combustion engines need three fundamental things: fuel, oxygen, and spark. The sexy aspects of modifying cars are focused on the first two elements: Double Pumper carburetors, ...

Some upgrades sound faster just because of the name. Performance spark plugs are definitely in that category. The name alone suggests extra power, better combustion, and maybe a little boost in fuel ...

Spark plugs are an essential part of your engine’s operation. When your engine fires, it’s the spark that causes the ignition cycle to begin. Over time, spark plugs wear out and should be replaced. If ...