Had B4 on my M435i. Not stiff enough. Changing to B6. Chacun a son gout. Had B6 on 1600, 2002, 320i, 535i, 318ti, 135i, 235i, now 435i.soon Z4. My local wrench swears by Konis, but, I don't agree.
I really love you British people. I've been to Scotland, Wales and England. I live in Canada, which is quite pleasant, as long as one doesn't travel to the U.S.
Jack
Hi Tom: I'm Jack, from Canada. I just purchased a 2003 with 30,000 km. I love it. Changed the tires (22 years old) and the transmission fluid (manual). Maybe put some Bisteins on soon, and new spark plugs.