Replacement Plugs

Cr10ek,they have a double ground strap for better performance=a couple horse power
 
Just changed my plugs out for CR10EK's myself, from all the reading I did that was the way to go. Someone did a dyno test with almost 3 more horse power with those vs stock. Apparently the other one you have listed does not produce the same result.
 
I ran the stock plugs, the CR9EIX's, and now I have the CR10EK's, and there wasn't any noticeable difference.
 
I just put CR10EKs in mine. They're pretty inexpensive, about the same per plug as I paid for my 2-stroke.
 


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