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      06-10-2013, 12:36 PM   #3
thegrinchboy
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Drives: '11 335xi, '18 X1, '21 M2C
Join Date: Jun 2012
Location: NH

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Quote:
Originally Posted by cdgatti View Post
My E90 '08 328i (rwd) is non-sport, it has C4/C3 springs F/R. Does this seem odd? I thought the E90 used the C4 or D4 springs in the rear.

If I switch to oem sport would I use D4/D3?
Here are some threads about springs that I read up on.

http://www.e90post.com/forums/showthread.php?t=435450
http://www.e90post.com/forums/showthread.php?t=85206

I am swapping from Koni Yellow with Eibach Pro (installed last month) to ZSP springs, probably D6 Front and D4 Rear since I have a 6SP MT xDrive E90.

BTW, I will have D3 rear (from an 335is) coming my way which I am not using if you are interested.
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