Thanks for confirming. The delphi coils that came on n54s are the same part used on n55s so how some of these rumors get started is beyond me. People were also saying the eldor cant be used on the n55 because they dont reach the spark plug. If that were true then why would every other coil be interchangeable lol.N54 and n55 coils use the same dwell effectively as the coils are basically identical other than manufacturers, which change based on deals and bidding wars generally. You can't just copy and paste the dwell tables simply because n54 uses rpm vs voltage with a temperature scaler (not in most xdf's) while n55 indexes load as well. Ultimately the dwell to saturate the coils will be the same.
I think there was a tangible benefit to the eldors over the bosch since the elders came with the metal heat shield. But then the Delphi coils also have the heat shield so in that comparison it's moot.