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Thread: Akrapovic evo 6 system & trackdays!!

  1. #1
    Baby Twin Cassius's Avatar
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    Question Akrapovic evo 6 system & trackdays!!

    Given that this system doesn't come with baffles, what are my chances of making the static 105db noise test? Anyone know? :|

  2. #2
    Superbike Twin Dr_D's Avatar
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    I suggest you contact someone like Akrapovic motorcycle exhaust systems
    My understanding is the full race Evo6 system is at 109db

  3. #3
    Baby Twin Cassius's Avatar
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    109db?? That's not good! Maybe I can drill holesin the outlets in order to fit a baffle...don't want to change the exhaust

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    Baby Twin Cassius's Avatar
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    Actually, I think it's part no 8796765, not the evo but still a 'race only' full system. Sounds great but still worried it wont make the limit...

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    Superbike Twin Dr_D's Avatar
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  6. #6
    Baby Twin Cassius's Avatar
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    Yes found that post hence me changing my mind on the exhaust (aprilia/akrapovic exhausts brochures to blame) will contact calsport and get the newer model baffles and drill holes!

    Thanks again for your help

  7. #7
    Superbike Twin Miff_UK's Avatar
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    Aye, even Oulton is down to 102db at most events nowadays....

    Miff

  8. #8
    Superbike Twin NickyBoy's Avatar
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    Quote Originally Posted by Cassius View Post
    Yes found that post hence me changing my mind on the exhaust (aprilia/akrapovic exhausts brochures to blame) will contact calsport and get the newer model baffles and drill holes!

    Thanks again for your help
    I hope it goes ok and works out for you but if it doesn't, I'll buy the system off you...

    NickyBoy

  9. #9
    Baby Twin Cassius's Avatar
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    Haha thanks Nicky I'll bear that in mind!

  10. #10
    Baby Twin Jammie's Avatar
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    Hi cassius. I have the evo6 on my rsv.
    For trackdays though, I got some custom austin racing silencers made up so i can use baffles with the rest of the system (plus new evo6 cans would cost a fortune if i ruined them!) Heres what my records of tests show:

    Cadwell, stock evo6 cans @ 5500rpm = 105db (right on the limit)

    Cadwell, austin cans + custom long baffles @ 5500rpm = 100db

    Silverstone, austin cans + baffles @ 7500rpm = 107db

    Silverstone, austin cans + no baffles @ 7500rpm = 115db


    Hope that helps!
    Last edited by Jammie; January 11th, 2014 at 02:28 PM.

  11. #11
    Baby Twin Jammie's Avatar
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    And heres a pic of me at cadwell on the mountain with the standard cans as evidence they pass the 105db test!

    farm6.static.flickr.com/5262/5646432506_3cfdae23d6_b.jpg

  12. #12
    Baby Twin Cassius's Avatar
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    Thank you Jammie, very useful!

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