I had always heard the items were identical except for the connectors. But this plants a seed of doubt. Could it be the cause of my slightly high HC numbers. Hmmmm.

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'02 BMW 325i
'85 300D 450k
'93 190E 2.6 170k(killed by tree)
'08 Ducati Hypermotard 1100S 6k
'06 Ducati S2R800 14k(sold)