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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > A Noob With A Question on M3 Suspension



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      09-12-2012, 04:41 PM   #1
sluggo1246
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A Noob With A Question on M3 Suspension

Hi Everyone,

I am picking up my '06 325xi and I already have a long list of things I'd like to do...thanks to these forums! A specific question I cannot seem to answer through searching is will a set of E90 M3 (06 as well) springs be a direct swap for my stock springs? While I'm in there I'll certainly do the struts as well (approaching 100k) but no sense in getting the springs if they won't fit without more modifications.

Thanks in advance!
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      09-12-2012, 10:30 PM   #2
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Why not just pick up a set of coil overs that u know will fit perfect and will have the same result? People are always parting them out for cheap for lease turn ins
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      09-13-2012, 10:19 PM   #3
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M3 front struts will not bolt to your hub

M3 rear struts (not sure about xi tbh) need rear lower camber link
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      09-14-2012, 05:05 AM   #4
sluggo1246
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I am only getting some (gently) used M3 springs...

Thanks for the replies thus far and i hope I clarified what I am asking about. Can I swap out my OEM springs (06E92) for the OEM M3 springs (06)?
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      09-14-2012, 05:47 AM   #5
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You should post this is the suspension tech forum.
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      09-14-2012, 11:48 AM   #6
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I think you are going to have some issues especially since you have a X-drive
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      09-14-2012, 03:42 PM   #7
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The M3 weighs 3700+ lbs. if you put M3 springs on your 325i, you'll have the ride height of a 4x4.
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      09-15-2012, 12:20 AM   #8
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Quote:
Originally Posted by mike-y View Post
The M3 weighs 3700+ lbs. if you put M3 springs on your 325i, you'll have the ride height of a 4x4.
That made me laugh out loud
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      09-15-2012, 10:28 PM   #9
sluggo1246
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Well...wouldn't M3 springs be stiffer?

And not necessarily bigger? That was my question and I'll be sure not to waste my time posting here again because most of you have been much less than helpful. In the time it took you to post something stupid, you could have given me useful information. I wonder why I even joined this forum.
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      09-16-2012, 04:20 PM   #10
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Quote:
Originally Posted by sluggo1246
Thanks for the replies thus far and i hope I clarified what I am asking about. Can I swap out my OEM springs (06E92) for the OEM M3 springs (06)?
Possiby but no, even if you could fit on the strut, it would damage it due to not being matched. Do it once do it right..
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      09-16-2012, 07:40 PM   #11
sluggo1246
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Thanks....

That's what I thought might be the case. If the spring doesn't seat into the strut the exact same way, that wouldn't work too well. I appreciate it!
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      09-17-2012, 12:57 PM   #12
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Quote:
Originally Posted by sluggo1246 View Post
Well...wouldn't M3 springs be stiffer? ...and not necessarily bigger?
first of all, they are different and probably don't fit, and even if they did, they are meant to support car that is 400 lbs heavier than yours, so even if they are shorter, they will still make your car ride higher than an M3 because of that weight difference (because all springs will compress a given amount depending on weight). This is even true for the 335i springs vs the 328i/325i springs (which all fit each other).

Second of all, there is no '06 E90 M3. the 06 M3's were still on the E46 platform. So your search for 06 M3 springs would get you the wrong parts.


Quote:
I'll be sure not to waste my time posting here again because most of you have been much less than helpful.
if you are that easily upset, you won't last very long here. So goodbye. and don't let the door hit you on the way out.

Last edited by mike-y; 09-17-2012 at 03:56 PM.
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