Suspension & Brakes E46M platform.

[mrgizmo04]

you'll absolutely appreciate the performance (and of course the looks) on street driving.

What performance did you feel over stock for street driving?

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[Obioban]

I have similar requirements and opted for Eibach Pro-Street Coilvers, GroundControl Street Camber Plates, + OEM CSL/CS Calipers & Disks. It is important to note I have NOT driven this setup yet as my car is still being built but hope to have it back soon.

I chose Eibach Coilovers over the others only because it was a simpler design with no dampening adjustments, which is also a con to many if not all people but for me, I don't mind. The GroundContol camber plates are different than typical camber plates because they include dampening AND have the caster and correct M3 angle. I opted for CSL/CS brakes because I wanted to keep the unsprung weight low because I'm running heavy 19" BMW 163M wheels and don't think because of my 99% street use I will need the additional stopping power of BBKs.

There's not much out there on these Eibach but here are a few references:
User Review (e46Fanatics) 1
User Review (m3Cutters) 2

Eibach Pro-Street Coilovers (NOTE: There's a Euro version that is different and is supposedly rebranded KW1)
GroundControl Street Camber Plates

Not to be the bearer of bad news, but my M3 wagon came with the Eibach coilovers... and they were terrible.

[puma1824]

Not to be the bearer of bad news, but my M3 wagon came with the Eibach coilovers... and they were terrible.

oh damn Well I guess I'll have to start looking for alternatives

What was bad? Spring rate, dampening, both? other?

[Cronenberged]

oh damn Well I guess I'll have to start looking for alternatives

What was bad? Spring rate, dampening, both? other?

Just peruse through either of the flat ride threads and you'll the see low to high end options of building a proper aftermarket set up.

[Obioban]

oh damn Well I guess I'll have to start looking for alternatives

What was bad? Spring rate, dampening, both? other?

The car just never settled down with them, especially at high (highway) speed. Jiggle, bounce, jiggle, bounce.

[puma1824]

The car just never settled down with them, especially at high (highway) speed. Jiggle, bounce, jiggle, bounce.

Well damn that's unfortunate. I guess I should start looking for alternatives.

[Cronenberged]

Here puma1824

https://nam3forum.com/forums/forum/main-forum/e46-2001-2006/9123-e46-m3-suspension-setup-or-how-to-not-downgrade-your-car-with-suspension-mods

[puma1824]

The car just never settled down with them, especially at high (highway) speed. Jiggle, bounce, jiggle, bounce.

Curious were the set you had the Eibach coilovers for the M3 or coilovers for the Touring? I believe they are slightly different.

[BBB]

What performance did you feel over stock for street driving?

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Couple things that are noticeable to me on the daily. I live in an especially hilly part of San Francisco which is worth mentioning. Brake pedal feel is greatly improved - while still being progressive, I can modulate the pedal much more effectively to maintain neutral body tilt while also having a lot more stopping power. This is helpful for me when braking gently and heel-toeing around town. Stock brakes aren't bad by any means, but personally for me I plan on putting BBKs on every car from now on. I think the benefits for daily driving may be less if you live in an area that's flat.

[mrgizmo04]

Couple things that are noticeable to me on the daily. I live in an especially hilly part of San Francisco which is worth mentioning. Brake pedal feel is greatly improved - while still being progressive, I can modulate the pedal much more effectively to maintain neutral body tilt while also having a lot more stopping power. This is helpful for me when braking gently and heel-toeing around town. Stock brakes aren't bad by any means, but personally for me I plan on putting BBKs on every car from now on. I think the benefits for daily driving may be less if you live in an area that's flat.

This was not posted in the no flaming allowed thread...

I'm assuming you were not running Project Mu pads on stock setup, right?

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[Obioban]

Curious were the set you had the Eibach coilovers for the M3 or coilovers for the Touring? I believe they are slightly different.

Don’t know, as I didn’t buy them, but I believe they were the M3 set.

[BBB]

This was not posted in the no flaming allowed thread...

I'm assuming you were not running Project Mu pads on stock setup, right?

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On stock setup and for my first set of pads on the ST40s, I was running normal Stoptech pads. The Project Mu pads were added late last year when I did a brake refresh.

[Lee_Enfield]

On a related note, What are peoples opinions on the ground control coil overs? There is a used set near here. They look different then what I found on the website. Yellow struts on red springs.

Or would a brand new set of bilestein B12 for a similar price be a better option?

It's a road car mainly.

[Estoril]

On a related note, What are peoples opinions on the ground control coil overs? There is a used set near here. They look different then what I found on the website. Yellow struts on red springs.

Or would a brand new set of bilestein B12 for a similar price be a better option?

It's a road car mainly.

I would leave them off a street car. Why increase your NV for no reason?

[Tbonem3]

Yellow GC kits are school kit with is just basic konis. You could make the same kit with their coilover conversion product if you already had Konis (or sachs or bilstein or the old dinan jrzs).

Red is their d/a kit. I wouldn't get a koni based kit other than TCK, despite liking and owning other GC products.