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NGK R2558E RACING SPARK PLUG SET for GR YARIS

3 Plugs in a set

Home  /  Car Parts & Accessories  /  NGK  /  NGK R2558E RACING SPARK PLUG SET for GR YARIS
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NGK R2558E RACING SPARK PLUG SET for GR YARIS

¥13,520 ¥12,480

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Product Number : R2558E
Price for set of 3 plugs. Please select the heat code when placing the order.

Please select per-product shipping when placing the order. This can be shipped via economy air shipping to most parts of Asia, the US, and Europe. However, the territories cannot be covered with this shipping, we may request an additional shipping charge after the buyer places the order.


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¥13,520 ¥12,480
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¥13,520 ¥12,480
Categories: Car Parts & Accessories, NGK Tags: GR Yaris, Nissan GT-R, Spark Plugs, Subaru, Subaru BRZ, Toyota 86, Toyota Yaris
  • Description
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Description

★ How to choose the shape of the ignition part

Considering the performance (ignitability) required of the plug, it is better if it protrudes into the combustion chamber (in other words, it is better if the spark position is closer to the center of the combustion chamber). The more the electrode protrudes, the more likely it is to receive heat and cause thermal problems (overheating, pre-ignition, deterioration of the outer electrode, etc.).
In general, the higher the performance and output of an engine, the higher the temperature in the combustion chamber and the stronger the vibration of the engine itself.
Therefore, as tuning progresses, we recommend a plug with a shape that prevents the insulator and electrode of the ignition part from being exposed to the combustion chamber.

Project (extrusion) type
Generally, it has a shape close to a normal plug. Suitable for less tuning such as muffler and air cleaner replacement. In addition, NA (naturally aspirated) engines can be expected to have high output in the entire range, and turbo cars tend to emphasize low-speed torque.
However, as the degree of tuning progresses, the thermal load and vibration applied to the plug also increase, so cracking of the insulator (insulator), melting of the electrode, breakage of the outer electrode, etc. are likely to occur.


Slant (diagonal) type
The insulator is further recessed and the electrode is also short and straight, and performance is demonstrated especially when the boost pressure is increased in a turbo car. Since the insulator is recessed into the metal fittings, it is less likely to be exposed to combustion gases. The outer electrode is also shorter and lighter, which not only prevents the electrode from heating but also increases its mechanical strength. In general, it is not possible to decide the plug from the output ratio with the normal engine, but if you want to increase the output by 50% or more in a turbo car, this type is recommended.
You can use it with peace of mind because it has a high safety margin in a highly supercharged engine where durability is emphasized.


Semi creeping type
In a way, it becomes the ultimate plug shape. If this type cracks the insulator and melts the electrode, it is almost impossible to deal with it from the plug side. However, durability and low-speed performance may be slightly sacrificed.

 

Plug part number heat value Terminal shape center electrode outer electrode plug type Thread size (width across flats)
R2558E 8,9,10 Integral iridium platinum LKAR (long reach) φ12×26.5 (Hex 14.0)

Product name NGK racing plug R2558E set of 3
compatible model Yaris KSP210 MXPA10 MXPR15 1KR-FE, M15A H30.2 ~
Yaris (GR) MXPA12 GXPA16 M15A, G16E-GTS H30.9 ~
Yaris (Hybrid) MXPH10 MXPH15 M15A H30.2 ~
Remarks Please select the heat value and the shape of the ignition part according to the degree of engine tuning and driving conditions.

Regarding this product, we do not accept inquiries about heat value or compatibility.

Please use the matching plug and enjoy pleasant driving with 120% engine performance.

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