just wanted to know what plugs everyone has been having good experiences with, i know all cars are different, some cars prefer different plugs, and in my experience bosch platinums dont work in too many of them, but since they were OE in Bimmers i am willing to try them, i would like to know if any of you have ever put the NGK iridiums in your cars, my bimmer has 300K miles on it and i just got it, i am trying to do everything i can to keep her running, starting from the simplest things and working my way up. I checked with NGKs website and they ARE offered for this car (mine is an 85 325e) has anyone used the bosch plat +4s? are they pre-gapped? I just dont want to spend 35 bucks on a set of plugs and then have the car run worse than it does now. I am sure many of you can relate.