Bujie DENSO Racing Iridium Denso

IRIDIUM RACING

IRIDIUM RACING spark plugs are engineered to unlock the full potential of high-performance engines. Designed for racing applications, they deliver exceptional ignitability, reduced spark voltage requirements, and maximum combustion efficiency, helping achieve superior acceleration and increased engine power.

With advanced iridium technology and race-proven design, IRIDIUM RACING minimizes misfires and ensures consistent ignition even under extreme operating conditions.

Structure & Technology

• 0.4 mm Ultra-fine Iridium Centre Electrode
  Developed using a high melting point iridium alloy, the ultra-fine electrode reduces required voltage and significantly improves ignition performance.


• All-Platinum Ground Electrode
  A platinum alloy ground electrode offers superior resistance to heat, wear, and deformation, ensuring long-lasting performance even under extreme racing conditions.


• 360° Laser Welding
  The iridium tip is secured using an all-around laser welding process, ensuring maximum durability and reliability.


• Highly Reliable Built-in Resistor
  A monolithic resistor reduces electromagnetic interference with onboard electronics (excluding IW06 type).


• Nickel Plated Housing
  Burnished nickel plating provides excellent corrosion resistance and reduces thread wear during installation.


• Racing Insulator
  A strengthened insulator developed through extensive racing tests improves mechanical strength by up to 20%.


• Spark Cleaning Pocket
  A patented design that burns off carbon deposits near the electrode tip, restoring electrical resistance and maintaining performance.


• Silicone Oil Coating
  Prevents moisture and carbon buildup on the insulator, ensuring reliable ignition even at race starts.


• Removable Terminal Nut
  Compatible with most ignition cables worldwide (some models feature fixed terminals).

Performance Advantages

Maximum Ignitability
Ultra-fine electrode design ensures strong, consistent spark even under extreme conditions.

Improved Acceleration
Enhanced ignition response delivers faster throttle reaction and superior acceleration, especially on track.

Increased Engine Power
Improved combustion efficiency reduces misfires and maximizes engine output across all operating ranges.

High Stability Under Load
Reliable ignition performance maintains consistent power delivery even at high speeds and engine loads.

Key Benefits

• Maximum performance for racing applications


• Increased engine power and acceleration


• Reduced misfires and improved ignition stability


• High durability under extreme conditions


• Advanced technology for consistent performance