x3 M-SPORT front struts

[ANDYORAC]

hi all im looking at changing the front struts,on my x3 2012, M-sport, not with (EDC) but sports suspension, I've looked at Bilstein B4 and B6, a bit of a price difference, but b6 has internal bump stops and dust covers, so any one got some experience with these or different makes it would be good to here.

[ANDYORAC]

up date, now looking at, Koni Special-Active Front Shock Absorber , good reviews, so between these and BILSTEIN - B6, still leaning toward b6's.