The Iridium TT Spark Plug combines the durability of an OE-style plug with the power and torque of high-performance engineering, making it a standout choice for automotive enthusiasts. Featuring a 0.4mm Iridium center electrode - the world's smallest diameter - it maximizes firing potential, while the 0.7mm needle tip ground electrode enhances spark energy and minimizes heat quenching. Built with DENSO's patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium for unmatched durability, even under extreme conditions exceeding 4000 Deg F. The 360-degree laser welding process ensures a robust bond and structural integrity, delivering consistent performance. Designed with a tapered seat type for a secure fit, this spark plug not only enhances fuel economy and reduces emissions but also offers the capability to drive around the Earth over four times with improved efficiency. For those seeking reliability, endurance, and peak performance, this spark plug is engineered to meet the highest standards of automotive excellence.

Product Features:

• 0.4mm Iridium Center Electrode: World's Smallest Diameter that maximizes firing potential
• 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
• DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
• DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
• Durability of an OE style plug combined with Power and Torque of high performance.
• Withstands temperatures greater than 4000 degree Fahrenheit
• Iridium TT
• Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
• Tapered Seat Type: Ensures a secure fit and optimal performance, tailored to meet the highest standards of automotive engineering.