Originally posted by drdavidge
havent seen this ever discussed before...anyone have any factual input? i have a 95 gsr...part numbers would be helpful too...thanks!
Sure. Factual input would be...
Any spark plug that isnt fouled. =)
I would have to say NGK coppers, but honestly, any difference would be negligble...if you notice it, its something else thats just a coincedence.