Spark plug Bosch or OEM BMW

i have been using the W7DTC plugs and they have been working great for me..my car is always held way up in the rpms..they have never fouled out or caused me any problems..and i get 8 of them for 30 CDN... seat of the pants tells me i like them better than my old platnums..the car idles better with them.. they are worth a try

I've been running W7DTC's for about a year now, with no problems. I haven't done any back-to-back dyno testing to see the difference between them and the usual W7DC's, so I can't comment on any power losses/gains.

I have never had an issue with the Bosch's

I personally pick the Bosch Super Plus Copper because they are cheap and last about 20-40k miles...

I'm running bosch platinum single pronges with no problem..

im running reg bosch silvers (of course the right heat range) on my supercharged setup and they run perfectttt, no misfires or anything, i love bosch plugs

I have a full obd1 wiring harness from box out 1 brand new plugs(bosh)wires(bremi) cap&rotor(bosh) bucking is not as bad

Don't use those, they suck. The center electrode is tiny, and fouls easily. I've had problems with them, and so have others. They don't last for ****.

everything else runs pretty poorly on our cars. especially the bosch +4's

I have bosh platnum on there and they look like crap after 2,000-3,000 miles.