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MSD iridium spark plugs can get your engine running at peak performance. These plugs have been developed from the ground up to produce the highest power feasible for your system. MSD's exclusive design includes center tips composed of iridium, a highly hard substance that promotes the greatest spark and greater durability. They also have copper center cores, a unique ceramic compound that improves the dielectric strength of the plug housing, and machine-ground straps that have been Yttrium-enhanced to withstand the heat of your high horsepower ignition.
On the street, at the track, or up and over the trails, MSD iridium spark plugs.
- Improves comprehensive drivability and economy
- Proprietary ceramic formula
- Spark plug, 4 per package
- Outlast performance plugs
- Unique insulator design
- Yttrium copper core
- Machined electrode
- Superior design
- Spark plug
- 1mm Iridium tip
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