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The NGK range of plug caps (resistor covers) are designed to give perfect noise suppression across all frequencies whilst engine performance is not adversely affected whatsoever. The plug caps come complete with seals at the cable end and plug end where applicable. All standard caps have a self threading cable connector, you simply thread onto the end of the HT Cable.
Please contact us to find the right NGK plug caps for your bike
Spark Plug Health Check
Use Spark Plugs To Check Your Engine Health
Heat Ranges Explained
Learn what a spark plugs heat range means, and how it can effect your engine
Heat Cross Reference
Use our spark plug heat range cross reference table
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