I recently installed Swift Spec-R springs on my car. I have an e92 328i M-sport with 19" 313 wheels. I also just today dumped my run-flats for Contis. These springs happen to be a "version 2" that Swift said will sit slightly lower in front than their standard 335i springs.
The ride is so much better - smoother and tighter at the same time. The car accelerates quicker, and also has less understeer. It's a big enough change that I'm going to have to get used to the way it handles now!
I suppose they may settle in a bit more, since it was just up on a jack, but currently the ride height is 7/8" lower in front, and about 1/2" lower in the rear. I did also replace all the spring pads, dust boots, and the front bump stops with part number 31332225377. I think the car sits just about right now, and the ride is great!
