E81- M3 E93 anti-roll bar and rear subframe bushings installed- REPORT!

[andrey_gta]

Originally Posted by AnooooOH

Ah okay now I got it!

So I need 28 bushings for the front (e93 m3 bar) and 26s (e92 m3 bar)for the rear!

28mm m3 bushing for 28 mm front e93 m3 sway bar
26mm m3 bushing for 26 mm front e92 m3 sway bar, these bushings will not work for stock bar

rear m3 bar uses its own m3 rear bar bushings

I guess shipping could be difficult lol

Powerflex link?
I do not think powerflex makes bushings for M3 parts. So only look at powerflex to upgrade stock bushings.

Powerflex subframe inserts are a bit simpler to install than the stock m3 subframe bushings

[AnooooOH]

Originally Posted by andrey_gta

28mm m3 bushing for 28 mm front e93 m3 sway bar
26mm m3 bushing for 26 mm front e92 m3 sway bar, these bushings will not work for stock bar

rear m3 bar uses its own m3 rear bar bushings

I guess shipping could be difficult lol

Powerflex link?
I do not think powerflex makes bushings for M3 parts. So only look at powerflex to upgrade stock bushings.

Powerflex subframe inserts are a bit simpler to install than the stock m3 subframe bushings

okay so when I have the m3 front and rear bar installed and still have the stock bushings, I need non m3 subframe inserts?

I`d love to get the m3 bushings btw but labor costs at bmw over here are a pita! and I think there is no chance my local body shop will have this special tool!

And I won`t imagine how much bmw wants to earn when they install coilovers, bars, control arms and bushings at the same time!

[andrey_gta]

Originally Posted by AnooooOH

okay so when I have the m3 front and rear bar installed and still have the stock bushings, I need non m3 subframe inserts?

You dont have to do any change to Subframe bushings.

If Labour is expensive then the Powerflex inserts can be a cheaper alternative for 70-80% of the effect.
It will still not be very cheap as you need to drop the subframe, but you will not need to remove any bushings. Usually done at same time as rear sway bar/anti roll bar

[AnooooOH]

thank you, you really helped me out!

[Dmitry83]

The upper (curved) M3 control arms installed.
Big disappointment as turned out to be a rock-hard.
The ride became harsh, when passing road cracks, tram railways, bridge buckles etc.
The steering feel improved only a fraction, so does not worth it.
To reming the history of my car building up- the lower (straight) control arms have been installed last year and until now I'm sure it worth every penny, as they wastly improve the in-turn grip, significantly- the ride comfort and a little- the steering feel. ($200 for a pair of TRW compaired to $350 for the pair of same TRW upper arms)
Replaced back with the standard upper control arms- and now again a fantastic pneumo-like suspension behavior is back.
Maybe for the heavy V8 engine (or even a R6) this hard bushings make sence, but for a N46N lightweight 2,0 engine this mod is more ride comfort killing, than a steering and grip improvement.