i have XI as well, and i am not expert on suspension
but i did some research, some people say you may need to cut the bump stop little, if not then your car will be almost sitting on the bump stop, but if you cut the bump stop, then your stock shock may not be able to handle, recommand aftermarket shock as well, maybe i am wrong, just what i got from research
hope this will help

i am in the market for wheels and suspension
but just got the Mtech front and side, waiting to get painted and installed, need to save up for next step

 

Here's a link to Drlev99 thread about his ordeal with H&R ...

http://forums.e60.net/index.php?showtopic=52664&hl=


Mine is also lowered on H&R but I did not cut the bumpstops and I've had it on for a few months now and so far so good.

https://5series.net/forums/index.php?showto...80575&st=15

 

thanks for your info, how's the ride compare to OEM?
i spent alot of time debating spring only or KW, of course only thing stop me from KW is the $$

 

I have 19x8.5 up front and 19x10 in the rear on my XI with H&R springs. I did not cut my bumpstops at the recomondation of H&R and have had no problems. The ride is rougher then stock on crappy roads (bumpy) but not horrible, on good roads it is golden.

My rear wheels are et38 and no rubbing issues.