I think there needs to be maps for stock guys [intake, catback]
Maps for those who also have a bigger FMIC
Maps for FMIC and down pipes.
Each of those are significant power adders for this car and it would be a waste that the tune doesn't account for them individually since not everyone that is willing to do a fmic is also willing to mess with the downpipes.
Current - 2013 N55 535xi Msport SAT
Retired - 2009 N54 335i Msport 6MT
Retired - 2000 M52TU 323i ASA Supercharged 5MT
More Photos of my car here