ahh, nice point there brader, very informative!.. ngayon, nalinawan nako sa mga heat range, cold plugs blablabla na yan,..hehe!

OT: yung "Silver" plugs, bihira meron nyan, I've seen one put on an SIR, Silverstone brand, P800-1000 ata isa, grabe mahal,. yun nga lang combined w/ a Nology wires and Ignition System,.. sarap itakbo nun, hehe!