In Reply to: Std. M5 bars are 25/18 (eom) posted by Matt S on January 09, 2001 at 11:34:15:
The 22mm is the "standard" //M5 bar size and some 535is came with a 22 as well. All e28s came with a 16mm rear bar.
Have you checked your "is" to see if you're actually gaining anything size wise?
I am preparing to install a set of used sway bars 22/16 on my 535is. Which of the three holes will likely work the best. I will be using the car as a daily driver and for driving schools. Only other suspension mod is a set of RD springs and a set of 225/50/15 R1s for the track.