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  • Choosing Muffler by CFM

    On the Dynomax site, they use the Powertech SCFM rating formula HP X 2.2 = CFM shown in the picture from their site,Dynomax
    Should I use this to choose my muffler, but what about the whole system?

    On a side note, ist the Ultra Flow louder or quieter than the super turbo?

    [ June 11, 2002: Message edited by: Jiffy ]</p>

  • #2
    cfm formula is probably fine

    ultra flow is straight through, and will be louder.
    2001 75th Anniversary V6 Pewter Firebird w/ Chrome Wheels, T-Tops, & Y87<br />Mods: Free Ram Air, !Silencer, Holley Filter, Full 3\" Hooker Catback, 3\" Cat<br />Best time: 15.095 at 90.00 MPH with a 2.127 60\'

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