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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Suspension | Chassis | Brakes > B6 OR B8 ,which one can fits m sport spring?
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      06-06-2013, 11:09 AM   #1
WALLER
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B6 OR B8 ,which one can fits m sport spring?

i checked bilstein website,and it says that B8 fits m sport suspension,and b6 fits standard suspension.but i saw someone bought a B8 for his m sport sping,the damper is too short , m sport spring only 15MM shorter than standard spring ,but B8 is 30mm shorter than standard damper. so the m spring will be preload on B8.
experience tells me, buy B6. but official website tells me ,buy b8. can anybody help me?
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      06-06-2013, 10:33 PM   #2
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Quote:
Originally Posted by WALLER View Post
i checked bilstein website,and it says that B8 fits m sport suspension,and b6 fits standard suspension.but i saw someone bought a B8 for his m sport sping,the damper is too short , m sport spring only 15MM shorter than standard spring ,but B8 is 30mm shorter than standard damper. so the m spring will be preload on B8.
experience tells me, buy B6. but official website tells me ,buy b8. can anybody help me?
I suggest you get the B8 and either the H&R or Eibach lowering springs. They will improve your stance and handling!

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      06-06-2013, 11:49 PM   #3
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Originally Posted by ks200906 View Post
I suggest you get the B8 and either the H&R or Eibach lowering springs. They will improve your stance and handling!

thanks for your reply,but i want keep the m sport spring,eibach and HR are too low for me , country road sucks.
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      06-07-2013, 05:47 PM   #4
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Do you get the same wearing if you change the shocks and keep the same springs as you do when you change the springs and keep the same shocks?
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      07-21-2013, 09:06 PM   #5
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did you end up buying either the b6 or b8 ?
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      08-19-2013, 07:47 PM   #6
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any updates?
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