Thread: E39 Suspension?
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Old 04-29-2009, 11:01 AM   #8
e39m_dream
2nd Gear Member
 
Join Date: Dec 2007
Location: North York
Posts: 71
I have the original M suspension II springs on my 530i, for 114k km.

Do I really need to change springs when changing stock shocks to Koni Sports?

At least I found the spring rates between OEM sport and H&R are the same:

Stock 105 0 335 0
OE Sport 200 +/- .5 380 +/- .5
H&R Sport 200 -1.5 380 - .75 to -1
Race - DTM Setup 345 -2 515 -1.25
H&R Coilover 340 -75 to -2 380 - .75 to -1
Autocross 500 -2 700 -2

I wonder if I go with H&R sport, the car will be lowered. Isn't this going to change to suspension geometry?

Last edited by e39m_dream; 04-29-2009 at 11:46 AM.
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