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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Best deal/package for m3 susp?



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      06-27-2016, 05:34 PM   #1
SanT335
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Best deal/package for m3 susp?

Is this (https://www.ecstuning.com/BMW-E92-33...Arm/ES2794964/ ) the best deal for what it is? I was also going to see if i could swap out their trailing arm with these meagan ones ( https://www.ecstuning.com/BMW-E92-33...Arm/ES2794964/ ) Any input is helpful ill be pulling the trigger soon. Thanks Fam!
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      06-28-2016, 04:27 AM   #2
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don't bother with upper rear arms or trailing arms spend that money on after market rear toe arms (such as megans)
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      06-28-2016, 10:15 AM   #3
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Quote:
Originally Posted by titium View Post
don't bother with upper rear arms or trailing arms spend that money on after market rear toe arms (such as megans)
Why is that?
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      06-28-2016, 04:45 PM   #4
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majority of the movement/flex comes from bushes. with the lower rear arms you get 2 bushes replaced by ball joints. the upper arms have the same stiffness bushes as the m3 parts so all you get is a tiny bit of weight saving.

aftermarket toe arms replace bushes with ball joints. this helps alot with changes in toe as load is applied.

trailing arms are metal and while they do flex i highly doubt it's significant. you also lose a factory designed failure point when going to thicker trailing arms - could mean doing more damage and costing more in the event of an accident.

if you havnt done them yet do the rear subframe bushes the difference is quite significant. - look into aftermarket ones they are two piece and easier to install
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      06-28-2016, 05:01 PM   #5
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Quote:
Originally Posted by titium View Post
majority of the movement/flex comes from bushes. with the lower rear arms you get 2 bushes replaced by ball joints. the upper arms have the same stiffness bushes as the m3 parts so all you get is a tiny bit of weight saving.

aftermarket toe arms replace bushes with ball joints. this helps alot with changes in toe as load is applied.

trailing arms are metal and while they do flex i highly doubt it's significant. you also lose a factory designed failure point when going to thicker trailing arms - could mean doing more damage and costing more in the event of an accident.

if you havnt done them yet do the rear subframe bushes the difference is quite significant. - look into aftermarket ones they are two piece and easier to install
Thank you! Just the answer I needed now I just need to find a shop around here
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      08-12-2016, 11:36 PM   #6
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Quote:
Originally Posted by titium View Post
majority of the movement/flex comes from bushes. with the lower rear arms you get 2 bushes replaced by ball joints. the upper arms have the same stiffness bushes as the m3 parts so all you get is a tiny bit of weight saving.

aftermarket toe arms replace bushes with ball joints. this helps alot with changes in toe as load is applied.

trailing arms are metal and while they do flex i highly doubt it's significant. you also lose a factory designed failure point when going to thicker trailing arms - could mean doing more damage and costing more in the event of an accident.

if you havnt done them yet do the rear subframe bushes the difference is quite significant. - look into aftermarket ones they are two piece and easier to install
So in this diagram, the only beneficial part to replace is #14 with the Megan aftermarket version?

http://www.realoem.com/bmw/enUS/show...diagId=33_1230
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      08-12-2016, 11:41 PM   #7
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yep and part 19 (guide rods) with the m3 equivalent.
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      08-13-2016, 12:02 AM   #8
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thanks!
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      08-13-2016, 09:28 AM   #9
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Just FYI for the fronts, I tend to find that FCP Euro is a bit cheaper than ECS: https://www.fcpeuro.com/products/bmw...e93-bmwmcaktfr
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      08-13-2016, 11:17 AM   #10
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Quote:
Originally Posted by SmellyGreek View Post
Just FYI for the fronts, I tend to find that FCP Euro is a bit cheaper than ECS: https://www.fcpeuro.com/products/bmw...e93-bmwmcaktfr
Thank you!
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      08-16-2016, 08:49 PM   #11
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Originally Posted by SmellyGreek View Post
Just FYI for the fronts, I tend to find that FCP Euro is a bit cheaper than ECS: https://www.fcpeuro.com/products/bmw...e93-bmwmcaktfr
Nice! Thanks for this.
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      08-17-2016, 01:43 AM   #12
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I did the front M3 set, rear M3 guide rods, and aftermarket adjustable rear camber and toe links. Ordered M3 parts (TRW) from FCPeuro and the aftermarket arms (Manzo) from eBay.
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M3 front control arms | M3 rear guide rods | Manzo rear toe and camber links | Monroe rear shock mounts | Varrstoen ES1 19x9.5+20 Front, 19x11+25 rear
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      08-18-2016, 07:05 PM   #13
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https://www.oembimmerparts.com/E9X-S...rts-s/1837.htm and offset motorsports
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      08-18-2016, 11:19 PM   #14
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Quote:
Originally Posted by SanT335 View Post
Why is that?
http://www.1addicts.com/forums/showthread.php?t=1079383
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      08-19-2016, 08:52 AM   #15
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Invaluable, thanks! Explains why HVT wanted the upper arms when designing the spring rate.
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      09-30-2016, 08:41 AM   #16
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      09-30-2016, 08:50 AM   #17
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There really isnt much to be gained by m3 suspension. The strut tower brace and front control arms are the only superior parts. The rest aftermarket is cheaper and better. Get the trw version of the front control arms. Theyre the m3 ones at half the price with m3 literally filed off them.
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      09-30-2016, 04:55 PM   #18
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FCP probably has the best deal running on m3 control arms front and rear.

Life time warranty too.

If you do the front control arms, you should replace the tie rods, if your over 100k and have not already done so. That's one of those, "while your in there, you might as well" deals.

Lemforder is the OEM provider; they cost 1/2 as much, unless you want to pay an extra $120.00 for a BMW stamp.

https://www.fcpeuro.com/products/bmw...e93-bmwmcaktfr
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