Racing Plug 2741

【NGK R6252K-105 Racing Plug 2741 ngk r6252k-105-2741】
Racing plugs recommended for two-wheelers and four-wheelers come in various types to further improve performance when used in racing, circuit driving, or with increased engine output due to tuning.
Therefore, their shape differs from the manufacturer's standard plugs, and plug life and low-speed performance may be slightly compromised.
However, on the other hand, they are developed and designed to fully demonstrate their performance even in extremely tuned engines and very harsh operating conditions, and are available in a wide range of high heat ratings.
Please select the appropriate plug for your individual engine to achieve its full potential.
Important points when choosing racing plugs
Determine the thread size, plug type, and shape from the part number of the genuine plug or the plug you are currently using, and then select the corresponding type.
Please refer to the manufacturer's website for guidance on selecting the correct firing end shape.
The heat rating must be selected considering the increase in combustion temperature due to increased engine output and operating conditions, in order to maintain the plug's firing end temperature within the optimal range.
Simply increasing the heat rating alone will not improve engine performance.
Generally, plugs with heat ratings of 7-8 are used for street driving, 8-9 for track day specifications, and 9-10 for race specifications.
The presence or absence of a resistor in the plug makes almost no difference nowadays due to improvements in ignition system performance.
In the future, resistor-type plugs will become mainstream.
Conversely, non-resistor type plugs may cause engine trouble in some vehicle models.
In such cases, always use a resistor-type plug.
*The image is for illustration purposes only, and the design and specifications of the products shown are subject to change without notice. Thank you for your understanding.