More Power, More Torque

More Power, More Torque

Published11 February 2022

Looking for more power and torque? Then you’ll find everything you need wrapped up in DENSO’s elite Iridium Racing spark plugs.

0.4mm Iridium-Rhodium alloy centre electrode requires less voltage to fire and increases firing performance. 100% pure Platinum 0.8mm ground electrode reduces risk of melting the plug during harsh racing conditions. As well as increased engine efficiency and fewer misfires, the Iridium Racing plugs best demonstrate their superior performance during acceleration. 




1Terminal 
Terminal nut compatible to the Nology Hot Wire and most plug cords around the world. 

2Built-in, Highly Reliable Resister 
Monolithic-type resistor developed to block noise that may affect electronic devices. 

3Corrosion Resistant 
Burnished nickel plating achieves high level of corrosion resistance. 

4Ultra-Fine Iridium Centre Electrode 
DENSO’s patented 0.4mm diameter centre electrode produces the hottest, most concentrated spark with the lowest voltage for superior performance. 

5All-platinum Ground Electrode 
100% pure Platinum 0.8mm ground electrode reduces risk of melting the plug during harsh racing conditions.

6Insulators 
Strengthened insulators developed specifically to withstand racing environments. 

7Spark Cleaning Pocket 
DENSO’s patented technology discharges and burns off carbon deposits, restoring electrical resistance.  

8Silicone Oil Coating 
Silicone coating on the insulator repels moisture and carbon to prevent fouling. 

9

360° Laser Welding 

DENSO's patented 360-degree laser welding process ensures exceptional bonding and structural strength.


DENSO offer customers the most advanced spark plugs on the market and coverage for most makes and models. To reap the reward, use IRIDIUM RACING and experience a ride like never before. 

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