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111 Posts
im currently running br9es plugs in my 600 HO rmk, but it tends to foul a plug kinda easy. can i go to a br8es and help this out? i wouldn't think one heat range wouldnt do any damage.what u guys running?
plugs in a '06 600
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Joined
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2,973 Posts
Run RN57YCC'S ONLY! Nothing else. Don't even bother with the NGK's, they don't even come close to the Champions.
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