thanks for tihs, but I have to say I've read on a few sites selling the Eibach bars that they are only for 2000-2003 model years for some reason. So I'm more open to buying a rear only sway bar, and even though the EiBachs are much thicher than the BMW OE Sport model, the 23.5mm sport version bar is much cheaper and worth trying first, foe me. I really enjoy how the factory suspension set-up drives. I dont want to change it too much.

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I swear, my cars are like a girlfriend.
Sometimes its a rough ride, sometimes its smooth motorin'.
Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves.
BUT at the end of the day, she loves it when I am inside her.

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'91 850i
'05 X5 4.4i
'09 Clubman S