The standard ignition system seems to be good enough to cope with a slighty bigger gap than what BMW recommends
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best spark plugs for an m20 what do you use?
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89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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