NGK CR9E Spark plug and spacer that is required when using our high compression stock bore piston kit (2014-2020). The 2022+ models do not require the spacer to be used.
Reviews
5.0
25 ratings
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NGK CR9E Works Great!
While dealing with Shannon about the flashed ECM for my Grom that I was putting the TB 186cc Big Bore kit on, he suggested adding the NGK CR9E spark plug for the change in motor. The work is all done on the bike and it’s performing as it should. I appreciate all the help from DH and will not hesitate to do business with them again.