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Old 09-20-2018, 11:01 PM
cn90 cn90 is offline
Join Date: Jun 2014
Location: Omaha, NE
Posts: 1,609
cn90 is on a distinguished road
What Spark Plug is everyone using? Any feedback?

I understand that factory is the 4-prong NGK 3199 (BKR6EQUP).

I have recently used Iridium BKR6EIX in my 2006 X5 3.0i 6spMT and like it.
I wrote a DIY here...

DIY: 2006 X5 3.0i Spark Plugs using NGK Iridium BKR6EIX

I just wonder what everyone is using out there for your E83...
1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
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