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Thread: track noise restrictions, how to quiet challenge car down?

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  1. 08-21-2013, 03:46 AM #1
    Hammink Performance
    Hammink Performance is offline
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    track noise restrictions, how to quiet challenge car down?

    Hi Guys,

    We have some tracks in my country with crazy noise restrictions, one with 90dba, and one with 85dba.

    Our Coyote powered Challenge car does 105dba with already modified side pipes (no cats) and open air filter (cai, kind of).

    Who knows what to quiet the car down?
    Last edited by Hammink Performance; 08-22-2013 at 07:06 AM.
    Distributor of Factory Five for Europe
    www.hamminkperformance.com
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