....where have they been all this time? Decided to take it iff the jack stands and give it a whirl. The improvement in performance is insane! I even have brakes again! So, I guess my vacuum system was seriously messed up. Cleaning up the intake and swirl flaps probably also made a significant difference.

I saw some posts of people with E90s who had a lot of improvement from changing the pressure converters. And this tallies with that experience. I am so pleased that I decided to tackle this at last.

Next stop, transmission and TCase service.

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2003 4.4i black ext./black int./black headliner (kid's runabout)
2014 535d X-drive, M package, silver/black interior

Sold but not forgotten:
2009 E70 35d, black ext./black int./black headliner (sold 2021)
2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly...

Other hardware:
2015 Cayenne S (wife's new DD and definitely wroooommmmm)
2016 Tundra 1794 edition crew cab, luxo hauler
2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles.