For maximum Upgrade under the most extreme conditions, you can’t go past DENSO Iridium Power spark plugs. Through patented technology, including a 0.4mm diaMetre centre electrode - the Iridium Power plug produces the hottest, most concentrated spark with the lowest voltage and outperforms any plug today.

It is no secret that Iridium is 6 x harder, 8 x stronger and could take temperatures of 650°C hotter than platinum (i.e. exceeding 2454°C).
Through patented technology, including a 0.4mm diaMetre centre electrode - the Iridium Power plug produces the hottest, most concentrated spark with the lowest voltage and outperforms any plug today. 

The DENSO difference:

• Iridium Power uses DENSO’s patented U-Groove ground electrode to achieve maximum ignitability while minimizing required voltage.
• At 0.4mm in diaMetre, the DENSO Iridium Power center electrode tip is the world’s smallest.
• Produces the hottest, most concentrated spark, while requiring the lowest voltage
• Produces maximum Upgrade under the most extreme conditions