I too am interested in hear others preference and results..
I also am curious exactly what does the charge pipe look like?
Apparently there are two different models. One for those 2010 and earlier N54 (that have a remove-able accordion rubber connector and 2011 and later models where the rubber piece is permanently attached.
Can anyone confirm which one is correct for the 1M..??
I would assume the longer but is that absolutely a necessity.. ??
OP - I am planning on running the original DVs.. As I do not plan on tracking my car and I am still on the fence about a tune.