ya a photo would probly help. older hotrods were grey, newer ones are gold. prox has been gold since as long as i can remember. wisecos were black, not sure if they still are. not real sure about the oem rods. if you know the length that would really help narrow it down as well
from my experience, prox and hotrods always has thier name stamped on the rod. if theres no name then possibly its a wiseco or some other chinese junk
if its 125mm i suppose theres alot of possibilities there