Quote:
Originally Posted by Viktimize
Wtf is wrong with the quote button?
Unicorn is correct, the 4294 is the OE Laser Iridium Plug. 6441 is the Iridium IX. 3271 is the Double Platinum. 7100 is the G-Power Platinum. 4291 is the V-Power Copper.
Where did you get the 3199 from? Did some shop recommend it?
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LOL...75% of the time the quote doesnt work on this website. Annoying.
1. Manufacturers, as in PLUG manufacturers, may say it is the right' plug, but that is only their opinon. The fancy, advanced designs are not OE....and while NGK may say they work, they may not. Subtle differneces in temp, cooling, flame-wavefront, etc, can happen in some BMW engines
2. FI (turbo) motors are MUCH more susceptible to these plug issues. I think timing is tighter AND thermal effects at the combustion point become more critical.
FWIW