15,8 kVIEWS
20REPLIES
16APPRECIATES
05/05/2026LAST POST
B6 ou B8 entretoises/chocs pour remplacer nos chocs M?

J'ai installé des ressorts eibach pro kit avec top chapeaux rasés et butées E36 (kit Dinan Ride Quality and Handling) pour maintenir le déplacement de choc de stock avec les ressorts inférieurs.

Les butées et les chapeaux ont été saccagés (j'ai un kilométrage de 93 km), donc je peux m'empêcher de me demander si mes chocs sont également grillés (ou à proximité).

Vous vous demandez quelles sont mes options pour de nouveaux chocs ?

Je comprends que le Bilstein B4 est équivalent aux chocs OEM...

Comment le Bilstein B6 se compare-t-il au stock?

Ou devrais-je considérer les chocs B8 légèrement plus courts puisque je suis sur des ressorts Eibach?

Des idées ?
Vous ne pouvez pas vous tromper avec le choc de Bilstein
Reading up more about it, some people say B8 is a bit more harsh (especially for street driving), while B4 is an OEM replacement.

I hear great things about B6, so will likely go for that option.
I love the b12 prokit with camber-caster plate so far. granted that is a longer lead time
I doubt B4’s are equivalent to OEM M3 shocks - even B8’s didn’t work as well as OEM (I had them taken off after a few weeks, the damping isn’t as good as original and the car has more movement at speed). I’d either stick to OEM or move up to Ohlins coilover system.
Hmm so B6 is also not an improvement over stock?

Did you track your car? From my understanding B8 are more track oriented? Just like B16, which is comparable to Ohlins RT, no?
well if you look at the B12 kit, it's B8 and Eibach Pro-Kit springs so that should give you an Idea.
Wow… didn't realize that.

So are the B6 shocks too tall for the Eibach Pro springs? Or still possible to pair B6 with Eibach Pro springs without blowing them out?

I understand that the B8 shocks are significantly harsher than the B6, ya?
And the B12 kit ($850) is actually much cheaper than B6 shocks ($1,850), since the B6 shocks are Damptronic..? Meaning, it can work with EDC?
What concerns me about that B12 is that the Eibach springs that come with it are universal for E90, E92 and E93…

While when purchasing the Eibach Pro Kit directly, each model comes with its own unique Eibach springs for the varied spring rates.

I'm thinking the B8 paired with specific Eibach springs might be the way to go, but then I would need to disable my EDC functionality?

Is there a Damptronic version of the B8 shocks?
Okay… I guess B8 do also come in a Damptronic version for different cars… Did they make them for the E9X M3 as well?

(I haven't been able to find one specifically for the E9X).
SilverSlug wrote
And the B12 kit ($850) is actually much cheaper than B6 shocks ($1,850), since the B6 shocks are Damptronic..? Meaning, it can work with EDC?
I have had B6 EDC paired with Swift Spec R springs for quite a few years. They work and feel great for NYC area driving, as well as hitting the interstate.
I've had B8 non-EDC with lowering springs on my car for about two years now. My butt tells me that they're a tad stiffer than sport mode in EDC but have a tad bit more dampening when the road gets harsh, but not by much. Once they've settled in the ride really isn't that bad at all, but you do notice the lack of dampening, the car doesn't hide a single bump on the road. It's muted but still there.

I'd consider them a like an EDC sport+ with lower ride height. Also, I don't miss having the adjustability either if you do decide to go that route if coding it out.
B6 EDC shocks work just fine with Eibach Pro-kit springs. Bilstein suggests using this setup for EDC cars. On their website, they actually sell 2 types of B12 Pro-kits for non-EDC and EDC cars: 1) B8+Eibach and 2) B6 EDC+Eibach. Of course they're never in stock though.

I run the B6 EDC+Eibach and I like it. I shaved the front strut mounts 8mm (similar to Dinan) just make sure there's enough strut travel but probably not necessary. If you go this route though, just know that ride height will be taller than OEM shocks+Eibach.
I currently have Eibach springs and the Dinan Ride Quality and Supplemental Handling package, which comes with shaved top hats and E36 bump stops to retain stock shock travel, so the same set up as yours.

How much taller is the B6 + Eibach setup than OEM shocks with Eibach?
B6 EDC + Eibach = 2 finger gap up front. Sorry, I don't have an actual measurement. And B4 shocks would probably be a downgrade to OEM shocks. Go for B6 or B8.
Attached image
Ah okay, and you're also running the leveling shock adapters in the rear as well, ya?
Yes, OEM spring adapters in the back. Raises the rear maybe 1/4". I'm probably sitting almost at competition pkg ride height.
Chutak a écrit
B6 EDC + Eibach 2 doigts à l'avant. Désolé, je n'ai pas de mesure réelle. Et les chocs B4 seraient probablement un déclassement en chocs OEM. Soit B6 ou B8.
chutak's user avatarchutak

Vous êtes un sauveur de vie. Un grand merci pour partager votre expérience avec la coupelle d'entretoise à ressort arrière. Je dirige le Bilstein B6 et cela a aidé à réparer l'arrière étant un peu bas. Voici mon E90 M3 avec amortisseurs B6/ressorts Eibach + espaceurs de 15mm à l'avant et à l'arrière.

Attached image

Attached image

Je pense que je peux aller sur cette route pour un léger OEM plus construire, aucune exigence de reconstruction comme vous obtiendriez w / les Ohlins, et ne pas payer pour l'ajustement que je n'utiliserai pas.

Juste pour m'assurer que j'ai le paquet ici, les pensées semblent être B6 (EDC pour moi), plus Pro Kits, plus tasse à ressort arrière / adaptateurs, et c'est tout? Rien d'autre ? Je suis à 98k miles, donc considérer s'il est logique de rafraîchir les supports de jambe de force, aussi et, si oui, s'il y a quelque chose à regarder là-bas. (Et je suppose qu'il faut réinitialiser l'adaptation EDC une fois l'installation terminée.) Merci.
Thread referenced by VtecforV8 in E90 M3 best suspension setup with EDC? 28/05/2026