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      09-15-2017, 09:23 AM   #1
ONLYA6
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Suspension: Anyone considered using the B12 Kit with H&R Springs?

(I apologize, I just realized that there is alot of discussion on this topic in the Shock/Strut thread.)

I'm getting ready to upgrade the suspension on my '13 M-Sport.

Due to comments about the H&R springs being under dampened with stock dampers I began looking for aftermarket. The only good option to purchase are Bilstein B6 dampers (designed for OE right height).

But... the Bilstein B12 Pro-Kit (B8 dampers) would be a good option as they are designed for -30--60 mm range. Only issue is I would like to go lower than 30mm from the supplied Eibachs.

So I'm thinking about purchasing the B12 kit, use the B8 dampers with H&R springs, then sell the Eibach's that come with the kit.

I checked on purchasing the B8 dampers invidually. It may be possible BUT price wise, I will come out ahead just buying the kit on sale and selling the springs.

Has anyone else done/though about this? Seems like a good option.

-Steven

Last edited by ONLYA6; 09-15-2017 at 10:01 AM.
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      09-15-2017, 10:39 AM   #2
X1Denver
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Do a search. There is a lot on here running HR with B6 HD. Myself included.

B8 will be stiffer.

Also the market for our cars on used performance parts is dismal. you might not get what you want for the eibachs or even close to breaking even, HR springs come up quite a bit and they sell for dirt cheap. Try TireRack for Bilsteins.
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      09-16-2017, 04:57 PM   #3
Ja Gio
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Part #46-191465
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      09-20-2017, 02:12 PM   #4
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Quote:
Originally Posted by X1Denver View Post
Do a search. There is a lot on here running HR with B6 HD. Myself included.

B8 will be stiffer.

Also the market for our cars on used performance parts is dismal. you might not get what you want for the eibachs or even close to breaking even, HR springs come up quite a bit and they sell for dirt cheap. Try TireRack for Bilsteins.
The B6 and B8 are actually valved exactly the same.

OP, if you're coming out ahead financially (even when the B6s come up for sale), by all means do it. But IMHO, you aren't going to be gaining anything by running the B8 vs. the B6, as the shorter stroke B8 isn't needed considering the mild drop. Not hurting anything either, however.
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs)
'14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs)
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