Racing Plug 2354

【NGK R5540F-10 Racing Plug 2354 ngk r5540f-10-2354】
Racing plugs recommended for two-wheelers and four-wheelers come in various types designed for further performance improvement when used in races, circuit driving, or with increased engine output due to tuning.
Consequently, their shape differs from the manufacturer's standard plugs, and the plug's lifespan and low-speed performance may be slightly compromised.
However, on the other hand, they are developed and designed to fully demonstrate their performance and withstand even extremely tuned engines and very severe operating conditions, with a wide range of high heat ratings.
Please select the appropriate plug for your individual engine to fully unleash its performance.
Points to note when choosing racing plugs
Determine the screw size, plug type, and shape from the genuine plug or the part number of the plug currently in use, and then select the corresponding type.
Please refer to the manufacturer's website for guidance on how to choose the ignition tip shape.
The heat rating needs to be selected considering the increase in combustion temperature due to improved engine output and operating conditions, in order to maintain the plug's ignition tip temperature within the optimal range.
Simply increasing the heat rating alone will not improve engine performance.
Generally, heat ratings 7-8 are used for street driving, 8-9 for track day specifications, and 9-10 for race specifications.
In recent years, due to improved ignition system performance, there is almost no difference regarding the presence or absence of a resistor in the plug.
Resistor-type plugs will become the mainstream going forward.
Conversely, using non-resistor type plugs may cause engine trouble in some models of certain vehicle types.
In such cases, please be sure to use a resistor type.
*The image is for illustration purposes only, and the design and specifications of the products shown may change without prior notice. Thank you for your understanding.