Racing Plug 4076

[NGK R6254K-105 Racing Plug 4076 ngk r6254k-105-4076]
Racing plugs, recommended for two-wheelers and four-wheelers, come in various types designed to further improve performance when used in races, circuit driving, or with engines tuned for higher output.
Consequently, their shape differs from the manufacturer's standard plugs, and plug life and low-speed performance may be slightly compromised.
However, conversely, they are developed and designed to perform adequately even in highly tuned engines or under very severe operating conditions, with a wide range of heat ratings available.
Please select the appropriate plug for your individual engine to achieve its full performance.
Important points when choosing racing plugs
Determine the screw size, plug type, and shape from your genuine plug or the part number of the plug you are currently using, and select the corresponding type.
Please refer to the manufacturer's website for guidance on how to choose the ignition end shape.
The heat rating needs to be selected to maintain the plug's ignition end temperature within the optimal range, considering the increase in combustion temperature due to engine output enhancement and operating conditions.
Simply increasing the heat rating alone will not improve engine performance.
Generally, heat ratings of 7-8 are used for street driving, 8-9 for track day specifications, and 9-10 for race specifications.
Regarding the presence or absence of a resistor in the plug, there is almost no difference recently due to improvements in ignition system performance.
In the future, resistor types will become mainstream.
Conversely, non-resistor types may cause engine problems in some models of some vehicles.
In such cases, always use a resistor type.
*The image is for illustrative purposes only, and the design and specifications of the products shown are subject to change without notice. Thank you for your understanding.