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      11-09-2012, 01:44 PM   #15
That's what she said...
bigjae1976's Avatar

Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Milwaukee, WI

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2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
Originally Posted by M3SQRD View Post
I don't have experience with the KW CS but a 5 mm spacer usually is enough; however, would that push your front wheel/tire out too far (too aggressive offset)?

To answer your previous,, I do not know of a list of front struts that may/may not have tire clearance issues.
I don't like 5mm spacers without hub extenders. If the back of the wheel bore is tapered then there is VERY little material in contact with the wheel and the hub. I know that APEX ARC8s with 5mm spacers leaves about 2mm of contact.

I think the clearance issue comes in when you have a helper spring which pushes the spring perch lower. I know KW had this issue. If you fit an 17x9 ET42 on a non-M E46s, the KWs would need a 5mm spacer whereas Bilstein and Koni (which didnot use a helper spring) would clear. I've heard of some people taking out the helper sping and then not having clearance issues...not sure how true that is or what the side effects were.

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