Bosch plugs that is. Wipers are good. these plugs had been on my customers vehicle for less than a month. the car was an 01 so it's too young to pick up these problems. Those tips are supposed to be chrome-like in appearance. this was his second set. a set of NGK Iridium (like he was advised by yours-truly to have anyways) and he is still firing fine. that was 5 months ago.
NGK's are the bomb, man. I've been useing NGK -BKR6E's for like 3 years. They work great. .....But I thought about useing the BKR7E's, should I what is the diff? I know the 7's are supposed to be the cold range, what's that? I have a full MSD set-up.
you almost sounded like you knew what you were talking about there.
I agree, I steer people away from Bosch after I had about 6 customers in a week come in with platinum plugs where there ceramic around the tip and spit in half and then dropped into the cylinder. NOT GOOD. I actually got in a heated argument with the Bosch factory rep about it and ended up with some free Bosch Icon wipers (sucky sucky sucky stick with the regular bosch wipers)
Red, if you aren't having problems with the BKR6E's I wouldn't change. If you get a colder plug it just reduces the temperature of the spark. If you aren't burning off all your fuel you would maybe switch to a hotter plug, If you are running too lean you could feasibly switch to a cooler plug. Or of course you could fix your fuel distribution problem.
BTW, about the cold range thing, don't know these things unless someone tells me or I read about it. When my wife gets out of college, she's going to work and I'm going back to school for those things. I'm not totally stupid though, I have some good experience with these things, just not small technicalities like that. And I'm well aware they make a huge difference.
Honestly I wouldn't even waste my money on the Iridiums. They are just a harder metal so they don't need to be changed as often but you get a better spark and better heat dissipation with just regular copper cores. That is what I run.