NGK Racing R6725-11 Competition Spark Plug – 13B / 20B

NGK R6725-11 Racing Competition Spark Plug
 
The NGK R6725-11 is a specialist Racing Competition spark plug designed for engines operating under extreme temperatures, cylinder pressures and sustained high loads.
 
RACING SPECIFICATION
NGK Racing Competition series
Heat Range: 11
Centre electrode: Platinum
Ground electrode: Platinum
Solid terminal
NGK Stock Number: 4311
Designed for competition / highly tuned engines
 
RSG – JAPAN SOURCED
As with all NGK spark plugs supplied by RSG, we specifically source our competition plugs from Japan.
 
APPLICATION
Suitable for appropriately specified applications including:
13B
13B-REW
20B
High-boost engines
High-power builds
Drag applications
Circuit / race engines
Other competition applications requiring an NGK heat range 11 plug
 
IMPORTANT
The R6725-11 is a competition spark plug, not a standard replacement plug.
 
A colder heat range is not automatically better. Plug selection should be based on engine specification, power level, boost, fuel and intended use.
For primarily street-driven engines, an excessively cold competition plug can be more prone to fouling during low-load operation. 
 
Contact RSG if you are unsure which competition plug is appropriate for your engine.
 
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