[fullthrottlemod]

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?

 

[myvertxcape]

Run RN57YCC'S ONLY! Nothing else. Don't even bother with the NGK's, they don't even come close to the Champions.