Some customers have purchased Eldor B58 coils with the expectation that they will be an exact match for the OEM BMW branded Eldor coils.
It turns out that the current version is not the same. The original part number was: 77460003 and the new version referenced here is: 77850002.
The new version is a different coil with a different resistor.
This appears to be a revision of the OEM version and it requires different spring/resistor modifications
(new version on the left, original on the right):
I have not ordered the Bremi, Bosch, or other coils yet to compare against.
-Rich
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2007 E70 X5 4.8i with 10" android screen Running 265/60/18 AT34s All Terrains (Mainly for road trips)
2008 E90 335i with 10" android screen, 7" intercooler, inlets, Dinan intake, JB4 BEF, E85 conversion, Mfactory LSD, M3 suspension, EDC shocks with custom controller.