i think they're called valve caps.. they are the little aluminum inserts that are placed in the center of the HLA divot on top of the valves that CZT sells/sold. Well i have these and have had these for a while and they are supposed to quiet the motor down especially w upgraded cams.. i really dont see a difference in using them or not!
does anybody know if these are even any good to use?
does anybody know if these are even any good to use?
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