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Go Back   E46Fanatics > Tuning & Tech > Suspension & Braking

Suspension & Braking
Have some questions about suspension or brake setups for your E46 BMW? Get all your answers here!

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Old 03-18-2013, 02:14 PM   #1
yetieater
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E46 FCAB: M3 vs. non-M

Is anyone aware of any differences between these two parts? I ordered the wrong part for my car and am wondering whether this is causing my caster problems.
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Old 03-18-2013, 04:32 PM   #2
yetieater
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I spoke with the parts guy at my local dealership. He did not have any E46 M3 FCABs on hand so I was not able to do a visual comparison. He did state that there were some differences in geometry.
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Old 03-25-2013, 04:18 PM   #3
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No difference in geometry, but a M3 FCAB won't fit on a non-M due to the housing obstructing the belly pan.
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Old 03-25-2013, 05:26 PM   #4
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Anyone else can confirm or disprove this?
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Old 03-26-2013, 06:42 AM   #5
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They are different. The M version will not fit a non M as mentioned. There is a part of the casting on the M version that hangs down that is not present on the non M.

M3



Non M

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Old 03-26-2013, 02:07 PM   #6
yetieater
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Yes, there is that difference in the housing. Suppose I ordered the M3 part and was able to bolt everything back together in spite of the difference in the housing. (I can't be the only person to have done this) ..... It might be the case that the M3 part isn't supposed to bolt up with the non-M, but it did.

I'm asking because I bought the M3 part from UUC. I called UUC, asked to speak with Rob. He said that there were differences between the parts, but couldn't elaborate much more. I was asking specifically if any differences were present that could throw off the angles of suspension components in my car.

My car hasn't taken well to getting aligned.

So I placed an order for the non-M3 FCAB from UUC, but they're backordered. I thought to check out my local stealership, but they didn't have both parts on hand to do a comparison. I bought the M3 part about a year ago, and UUC won't take it back because it's already been installed on my car..
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Old 03-26-2013, 03:23 PM   #7
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I have a set of non m uuc fcabs I can ship em tomorrow if you want them.
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Old 03-26-2013, 05:28 PM   #8
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I may PM you, but be warned that I will lowball you for my own mistake.
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Old 03-26-2013, 07:25 PM   #9
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shoot at me
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Old 03-27-2013, 06:52 PM   #10
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no go then I suppose.
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Old 03-27-2013, 11:27 PM   #11
yetieater
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Exceedingly occupied with matters of greater importance. Please do not be offended - it's not you, it really is me.
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Old 03-28-2013, 05:25 PM   #12
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no ones offended no worries here. keep on trucking.
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Old 03-28-2013, 05:46 PM   #13
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Quote:
Originally Posted by yetieater View Post
Exceedingly occupied with matters of greater importance. Please do not be offended - it's not you, it really is me.

just waiting to hear the other guy ask if you think his butt looks fat
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Old 03-28-2013, 06:18 PM   #14
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Funny
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Old 03-28-2013, 06:31 PM   #15
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those LCAB carriers will not fit with the oem stingray shaped underpan, but I think they do with the older tubular brace.

Did you just get the M3 bushings or that complete carrier.

You can actually bolt those up and buy the M3 underpan and and get two extra connection points to bolt in being those holes in the bottom of the LCAB carriers.
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Old 05-29-2013, 10:04 AM   #16
yetieater
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E46 FCAB: M3 vs. non-M

Click image for larger version

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Click image for larger version

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These are the OEM FCAB for E46 M and non-M


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