Suspension & Brakes E46M platform.

[mrgizmo04]

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.

A lot more stopping power probably comes from 4x the pistons your bbk got and the neutral body tilt from the huge rotor, you reckon?

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[Tbonem3]

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

It's a road car mainly.

IMO, most (younger) people would want the GC to lower the car for looks. If you can live with stockish ride height, because your prioritze function over form, you'd be better off with regular yellow konis or bilstein b6s with eibach or dinan or maybe vogtland springs.

Then, for a street car, the difference between twin tube konis/sachs/b4 and monotbue billy b6s is comfort vs capability. B6s blow twin tubes out of the water to steal EricSMG's line. But, esp when new, they're much stiffer and harsher, though nothing's harsher than the higher spring rates that some these cheaper ($1k-2k) coilover kits come with.

Koni yellows with a lowering spring kit will sit slightly lower than the same springs on B6s, but the performance will be worse.

[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.

[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?

[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.

[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.

[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.

[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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[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.

[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.

[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.

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

[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.

[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.

[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?