Vogtland Springs

[e304me]

https://www.autoaccessorystore.com

[MikesJo]

I believe only the rears are adjustable.

[e304me]

fronts too

[golde30]

the 325is in my sig is running vogtland.

[Mike@PureMS]

Vogtland kits feature KONI Sport adjustable shocks. Fronts are externally adjustable, rears are internally adjustable.
You can get 'em from purems.com, one of the biggest Vogtland dealers for Euro cars. I run their coilovers on my 2 Audi's and absolutely love 'em.
Would have put them on the E30, but I needed a full strut housing which they didn't have.