Ford MotorCraft Copper Core 1 Step Colder Sparkplug Set

Ford MotorCraft Copper Core 1 Step Colder Sparkplug Set

Complete your performance ignition upgrade with a set of four matched genuine Motorcraft Copper Core spark plugs. These plugs are the absolute best choice when it comes to high performance. Platinums, double plats, gold etc. are all plugs made for long life. They will NOT offer the best performance levels. Copper cores will NOT last as long (but they are super simple to replace on Zetec’s anyways), but have shown honest 1-2 wheel horsepower gains over comparable platinums. Foci come factory with platinums, so upgrade now, its probably time to do it anyways. Colder heat range is a neccesity to lower cylinder temps on nitrous, supercharged and turbo assisted cars. Quality made in the USA.