Utilizing decades of experience developing the world’s leading spark plugs, the Iridium TT draws from the best features of the DENSO family of spark plugs, giving you more power in a more versatile plug. Engineered with the smallest tip in the market, the DENSO Iridium TT spark plug delivers more complete combustion, giving you superior fuel economy over any other plug. Unparalleled, the Iridium TT is designed to last beyond 100,000 miles – providing coverage for most makes and models on the road today. For more information visit: http://www.densott.com/