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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Lowering The E90?



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      07-18-2008, 05:33 AM   #1
Fritzables
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Lowering The E90?

Hi All,

I have an E90 323i which the M-Sport package so it has already been lowered the 15mm by factory.

I wish to lower it a tad more without compromising the suspension and alignment adjustments.

What are my options?

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      07-18-2008, 08:41 AM   #2
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what do you mean "compromising" the suspension and alignment adjustments?

As for "compromising the suspension," it seems like most people get along just fine with a spring swap (ie H&R). There is a chance that might stress out the stock struts, so the safest way is get either a strut/spring combo or a simple coilover setup.

And as for not wanting to "compromise the alignment adjustments..." If you lower your car, you're going to have to get your car re-aligned.
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      07-19-2008, 02:28 AM   #3
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Thanks Skim7x,

What I meant about 'Suspension Compromise' is that I have heard that dropping the E90 results in running out of adjustments, specially Camber. Again, this is only what I have been told in the past.

Not knowing too much about Coil-Overs, but aren't they same as fitting in new springs??

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      07-19-2008, 10:44 AM   #4
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Coilovers are basically springs + shocks. The coupled shocks are made for the ride height that the springs provide. I believe that if you drop your car too much with some springs, it can bottom-out the stock shocks--if this happens, you're going to have to buy new shocks because your warranty for the shocks is gone once you replace the springs.

Thus far, I've dropped my car about an inch all around and have not run out of camber adjustment settings. I'm not quite sure about a drop >1", though...
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      07-19-2008, 01:23 PM   #5
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I believe that's about the same drop between a non-ZSP and a ZSP car here in the US. You have quite a few options that you can check out here.
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