Spark Plugs and Wires
Timing and Firing Orders
Mercury Topaz
Ford Expedition XLT

Will replacing old spark plug wires with higher quality ones effect performance if yes how?

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2006-07-19 18:13:09
2006-07-19 18:13:09

Yes, to some extent. The wires are to carry the electrical current. If you use cheap wires with poor insulation, you will potentially get sparking across the engine and interference with AM radio stations. If you are not having problems, then just go with the same brand. Most wires are adequate and the so called excellent ones are mostly hype. Don't expect a horsepower increase by so called better wires. The best you can hope for is less interference. spark plugs can help, but if you want more horsepower you must include the entire electrical system, spark plugs, wires, coil pack, cap and rotor, distributor, none of which are all that expensive

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