The concept behind high performance spark plug wires is simple. More juice to the spark plugs helps them to produce stronger spark and burn the fuel-air mixture inside the cylinders more completely. A better burn means more power, smoother idle, and can even bring along a bit more mileage thanks to an increase in efficiency. While ordering up a set of ready-made plug wires is easy, it is not always an option when it comes to engine transplants, headers, or other moporiented madness. The good news is building a set of custom wires is nearly as easy as ordering a ready made set. Besides the obvious benefits of increased spark energy and improved combustion, there's the visual appeal that a set of fat performance wires can bring.
Making a custom fit set of wires may seem a daunting task, yet in reality it is a very simple procedure when you take a methodical approach. The measure it twice, cut it once philosophy of doing things most certainly applies here. The other important maxim to keep in mind is the right tool for the right job. Any good set of custom spark plug wires will come with a mini-crimping tool. These are great for one or a few sets of wires. If you plan on building a great number of custom spark plug wires, or just like cool tools, purpose-built spark plug wire crimping pliers are available as well. Using regular pliers or other tools not designed for the task will result in a weak crimp and poor performance guaranteed.