Iridium TT Twin Tip Technology delivers far less obstruction to the spark allowing an Omni-directional explosion. This minimizes the quenching effect and results in a more effective, more complete combustion. Better combustion means more power and better fuel economy, as fuel is burned more efficiently with each piston firing. The large center and ground electrodes seen on a Standard Plug increases "quenching" of the explosion, meaning the spark explosion is restricted by the electrodes above and below the gap, allowing it to spread to either side, but not grow with full range.

• Larger spark translates to more power and superior fuel economy
• 0.4 mm iridium center electrode: world's smallest diameter that maximizes firing potential
• 0.7 mm needle tip ground electrode: promotes higher spark energy and less heat quenching
• DENSO patented 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode

Specifications

Common questions