thunder lips
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I am going to get some spare spark plugs tonight. What brand and type do a lot of you owners run in your sled? Thank you
A
Anonymous
I use the CR10EK NGK plugs. Freddie says they add some extra zip in way of horsepower... 
RobX-1
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thunder lips, I saw your other post concerning the ECP filter kit. If you do end up getting this kit, Freddie has spark plugs that he recommends with his kit. I believe they are NGKs CR10EK.
Mighty
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It is the NGK CR10EK and you can get them for about $5.50 at Advance Auto 

welterracer
TY 4 Stroke God
SAVE YOURSELF SOME TIME AND JUST GET THE WHOLE WORKS FROM FREDDIE AT ECP!