In Reply to: Best spark plug.. Bosch Platinum+4 or Split fire? posted by Steve. K on May 13, 1999 at 20:01:44:
The platinum plugs are great if your not a racer and just want a plug that lasts a long time. But if your into modifying your engine etc the platinum plugs are not the ones to go with.
The splitfire plugs are the worse. I've heard and had a friend experience the tips breaking off and going into the engine. There goes your engine!