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Cat back exhausts worth it?

Discussion in 'A4/S4 forum(B5 Chassis)' started by doeboy, Jun 23, 2007.

  1. doeboy

    doeboy Member

    Apr 27, 2006
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    Ok i only know a little about this, yes i could search but i'd like a specific answer not, generic. I've heard with a turbo you can gain upto 40Bhp is that true? I'm put off by the idea of having to change the dam thing before MOT every year!
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  3. jcb

    jcb Active Member
    VCDS Map User

    Sep 19, 2005
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    no it is not true (outside the pages of MAX power!)
    I put on a turbo back miltek on an otherwise unmodifies 1.8t. spools up a little earlier, by few hundred rpm, little quicker to respond, similar top end, may have slightly better acceleration, but i doubt if it has freed up any more that 5bhp!
    sounds better and makes a welcome addition to the ongoing list of additions though.
    ans as it was £100 of eBay it was a bargain!
    don;t go buying big fat exhausts expecting whiplash from the newfound acceleration
  4. joost

    joost Active Member

    Nov 11, 2005
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    If it's cat-back you won't have to - the cat should still be in full working order. Just be aware that some exhaust manufacturers' claims are wildly exaggerated so don't believe all the bullshit on their sites.

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