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      02-08-2013, 09:27 PM   #4
Drives: 2011 e92 M3
Join Date: Dec 2012
Location: NY

Posts: 1,469
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Originally Posted by dmw16 View Post
Currently on my E46 M3 I have Billstein HD shocks and Eibach springs. I bought the setup upon discovery that my factory rear spring had broken and at the time hadn't really thought about track-duty.

I am now getting my car ready for track-duty as a more primary focus (it's not my DD) and I'm wondering if I'd do well to upgrade/change-out the Eibach springs with a set of linear springs like Hypercoil or Swift?

If so, how do I go about selecting spring rates, length, etc?

You should contact Harold at's very knowledgeable on suspension tuning for BMWs.

He's also a vendor here on the forum
Vic311 is offline   United_States
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