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Differneces in Sway Bars?

Discussion in 'A4/S4 forum(B5 Chassis)' started by Mutinyno9, May 12, 2004.

  1. Mutinyno9
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    Mutinyno9 Member

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    I was told in a different topic that if i were to put the S4 suspension on my 1.8T that it would be a good idea to also get a 19mm rear sway bar to fix the oversteer. I was checkin out things online and notice a lot of different types/kinds/sizes of sway bars for the front and rear. I know i have a stock sway bar in the front lower(i have removed it once before) and i don't think i have a rear one though. My questions is what is the difference between the sizes of sway bars compared to fronts and rears and adjustable ones? Is it ok to get a rear sway bar and leave the stock one in front?
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  2. ImolaS4
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    ImolaS4 Member

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  3. DavidR
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    DavidR Active Member

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    On the UK market the A4 comes with a 12.5mm rear bar, a4 sport and s4 15mm rear bar.
    The front bar is universally a 29mm bar on a4, a4 sport and s4.
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  4. ImolaS4
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    ImolaS4 Member

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    My bad on the spec for the front sway bar. I don't know if the numbers are different in the US (where I am). I stand corrected.
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  5. Mutinyno9
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    Mutinyno9 Member

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    how useful is a front tower bar?
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  6. ImolaS4
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    ImolaS4 Member

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    As far as I know, you can't fit one up top without severe modification. And I don't think it's a necessity like the JDM cars. Audis are fairly rigid; Audi's torsional rigidity is one of the best in the automotive world.
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  7. Mutinyno9
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    Mutinyno9 Member

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    So how different is a 19mm rear sway bar from like a 29mm rear sway bar. Do they both do the same thing just the bar is bigger?
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  8. ImolaS4
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    ImolaS4 Member

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    You don't want to go too stiff. Too stiff will give major oversteer. 19mm seems to be the dialed in preference with most everyone for a rear sway upgrade - especially with upgraded springs or coilovers.
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