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Thread: back box

  
  1. #1
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    mib gsi turbo's Avatar
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    back box

    ive put a backstuk back box on my gsi and it sounds no different will change in time.???

  2. #2
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    ForZiE's Avatar
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    sometimes backboxes need a few weeks 2 settle in and sound nicer... Give it a week or 2 and it should sound nice... Also they normally need to warm up to get peak noice and power out of them
    Astra Mk4 GSi in Ardon BLUE
    "HAS IT GOT BOOST"

  3. #3
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    Woolleyman's Avatar
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    Ive had systems take a couple of hundred miles to run in just give it time and it will sound better and better.
    Coupe turbo now with front mount

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