BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      11-27-2011, 05:30 PM   #1
RPM8300
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128i Autocross Build - Do I need a rear sway bar?

Experts - I'm prepping a 128i for autocross (STX) and I just installed the Bilstein PSS10s - they feel great although I havent taken her out to an autox event yet. Based on digging through realoem.com and the boards, my 128i does not have a rear sway bar at all - its the non-sport/non-M sport model. I'm thinking of upgrading the front sway to the E93 M3 FSB and just adding the rear sway that comes with the 128i when equipped with the M sport package - its a 12MM bar.

If I dont need to, I wont add a rear sway - its obviously one of the more complicated mods.

Thanks for any advice yall can offer,

http://www.realoem.com/bmw/showparts...34&hg=33&fg=45
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      11-27-2011, 08:43 PM   #2
xerox445
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On this car the FSB is going to have a more pronounced effect. But a rear sway will help as well, I wouldn't advise adding either sways before increased spring rates.
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