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      12-15-2012, 07:38 PM   #20
Mike Benvo
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Drives: 08 E90 M3 / 400whp Turbo 7
Join Date: Apr 2008
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1990 BMW 735i Turbo  [5.00]
2004 BMW M3  [0.00]
2008 BMW M3  [5.00]
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Quote:
Originally Posted by Superfly_M3
NGK makes plugs with knock sensor? is that what OEM uses?
There is no conventional 'knock sensor' on the OEM plugs or these NGK's

The combustion quality detection is a function of the coils themselves and the feedback received from the plugs.
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