Quote:
Originally Posted by fw_fw
Doing a little light reading on the interwebs today about bumpstops and the E90 platform, most recommendation are to not cut the bumpstops when lowering the car as it changes the progressive combined spring rates, instead to use a shorter bumpstop from other BMWs, i.e. E36 M3 Front and E85 Z4 Rear. Since the sleeves seem to be the biggest difference between E9X and E84 it may also work for us. Here is one of the many threads:
http://www.e90post.com/forums/showthread.php?t=614778 |
Yup, not too worried about it though. I have E85 rear stops that I played with on my 135. They are stiffer all over vs. the stock X1 stops. You don't lose any progression switching to them, quite the opposite.
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs)
'14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat)
'08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat)