Review on Iridium 4Pieces Ignition Racing Upgrade Replacement Parts for Ignition Parts by Guy Murphy

This upgrade for my automotive ignition system delivered on performance .The Iridium spark plug design is certainly an unexpected addition that I am very pleased with. i noticed a difference in my car's speed and pick-up immediately. The only minor downside was the installation process; it took a little longer than expected. However the end result was worth it for the quality and reliable performance I received..