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I have a 02 z440 sno pro. I'm giving everything the once over b-4 going out. My dealer prep was pretty horrible to say the least (skis way out of alignment, no grease, track off center, idle was set at about 500, need I say more?) Anyway, it has NGK plugs (#BR9EYA) in it. Is that a good plug for this sled or would anyone recommend anything else? Just for having a good time on the trails. I gutted the airbox, put a goodwin clutch kit in and put on an MBRP silencer. I haven't re-jetted, thats still stock, unless the dealer changed it for some ungodly reason. Any tips would be appreciated. Thanks, Joe
 
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