I've used Splitfire plugs before and that was when they first came out. Was never impressed by them and switched to trusty Bosch platinums. Have never looked back until now. I was wondering if anyone has tried them in a Mini. Do they make any difference? There are two versions: copper and platinum. At one time, they even had one with FOUR electrodes! I didn't buy into the advertising as I'm sure someone would have tried that setup years ago. So, has anyone used this brand? Does it help or is it a waste of money? I also noticed on this msg board that nobody seems to use Bosch or Autolite. Is there something bad about those? Why do a vast majority lean towards NGK?

 

Bottom line is NGK makes the best long lasting plug and yes I have used the Splitfires and noticed hesitation and lack of power.