Go NGK Standard or Platnum with out a doubt.
Bosch is ok but if you use them i recomend going with a standard one prong, correct gapping is important. I used to Bosch iriduim fusions with 4 prong and had them in for about 4 months and they started to miss fire and when i pulled them there was oil deposit and signs of predetination. I came to the conclusion they were just too hot and it was dumb to put them in. Bimmers need to stay with just standard / platinum plugs nothing to hot. use only NGK or Bosch
