Originally Posted by vapore0n
Lets see how that works out.
I got the same setup and I like it. I had the bump stops cut out as the instructions state.
I do believe that the Eibach springs (designed for 335i not xi) dont handle the weight of the XDrive well, reason why the feel of bottoming out on bumps.
A lot of the extra weight in front on the Xi is unsprung. I.e. hubs, axles, outer CV joints, & heavier lower susp pieces, are not supported by the springs. FWIW I have had no bottoming problems, in fact fewer/none compared to stock which was terrible, even on non RFT Conti DWS. And weight wise my car is a pig, Xi + AT using the same Eibachs as non-Xi MT.
This fact still blows me away, that a much lower + stiffer "sportier" susp bottoms less and feels so much better on terrible roads. In fact I never would have believed it had I not previously put the same K/E susp on my other car (e36 M3) and it soaked up bumps like magic, far better than the stock 335Xi. So I thought WTH go for same set up on the Xi.