Spark plug Bosch or Autolite

The part number I have for the Bosch is 4418. There web sire below only goes up to 2000 EV so I don't know if these are the same as the 2001 + EV. I really love these plugs and ran them in my prior Audi A6. Long lasting, great even spark, no gaping. Bosch claims (see web site) increase power. Maybe?

It has been satisfactorily argued that the inexpensive Autolites work as well as the expensive Iridiums, with the understanding that the Autolites must be changed more often.

The plugs that came with our cars from the factory were the Bosch FR8LDC.

I swapped plugs last night and so far no more battery light. I am now on the correct bosch supers While I was getting the flashing battery light I was running bosch supers 2 ranges colder.

I have had exellent results and will probably run nothing but them

i just changed mine out.. i put in the autolite 3923's ($4 for the set) . they seem to work fine. one thing to watch out for though - they were all gapped differently out of the package. be sure to measure the gap before putting them in, just in case. (the gap should be .028)

I got W7DC spark plugs from the local foreign parts place...performance hasn't been ideal, and I've already looked at some of the other common issues; I'm considering new plugs in part due to fouling (bad CTS, drove with a failed CTS for too long, lots of carbon on the plugs...cleaned them up some, but I'm not convinced they're OK).

And I tried both the Bosch and the NGK back to back, and the NGK ran far better than the Bosch. The Bosch were terrible in my case.

I just put Bosch Copper plugs in my 2.0 L Passat and it's running like crap. I think I forgot to gap a couple of the plugs... Would that explain the rough running engine?

i'm running autolites right now and i'm not too impressed with them