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  • High flow cat question

    Right now I have a cutout right after the cat. It's not too loud so I leave it open all the time. If I got a high flow cat how much louder would it be. A little louder would be good, but I wouldn't like to be capping and uncapping it all the time.
    2001 3.8L Firebird M5<br />Flowmaster 80 series,exhaust cutout,catco hi-flow cat,tbyrne WRA,whisper lid,K&N filter,BMR LCA\'s,Ram air H.O. hood,3.73 gears with LSD 17\" by 9 1/2\" TT2\'s<br />Rockford 300s with 2 12\" JL audio W3v2 subs and JVC HU

  • #2
    It will be louder.
    <b>99 Camaro Z28 A4</b><br />R.I.P. 00 Firebird 3.8<br />14.89 @ 90, 2.03 60\'

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    • #3
      Too loud to keep uncapped all the time?
      2001 3.8L Firebird M5<br />Flowmaster 80 series,exhaust cutout,catco hi-flow cat,tbyrne WRA,whisper lid,K&N filter,BMR LCA\'s,Ram air H.O. hood,3.73 gears with LSD 17\" by 9 1/2\" TT2\'s<br />Rockford 300s with 2 12\" JL audio W3v2 subs and JVC HU

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      • #4
        that sounds more like a personal prefence to me
        1999 Pontiac Trans Am M6 Far from stock.....
        Pics http://rides.webshots.com/album/5599...Dk?vhost=rides

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        • #5
          I just got a highflow cat a few weeks ago. I don't have a cutout, but I have flowmasters, and my exhaust is about 3x's louder than the stock cat. So I'm sure you will notice a definate increase in volume.
          <a href=\"http://pics.projectpredator.com/thumbnails.php?album=16\" target=\"_blank\">2003 Zinc Yellow Mustang GT</a> 1 of 701<br />ET : TBD<br />But our shenanigans are cheeky and fun! Yeah, and his shenanigans are cruel and tragic. Which... makes t

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          • #6
            I have a highflow and the cutout sounds great. But... Im differnt than u I already forgot, I have an electric cutout, so I can open and close it, but closed it doesnt sound the same as capped with a metal cap, but open is not as loud as uncapped, its got a valve on it that opens right but when its opend the air passes over it and straitens it out. so mine wide open sounds pretty good, but with it just open cut out =D I love it, but I was afraid of a ticket, ( I ve had mroe than enough already) but like, It is definitly awesome I get [img]graemlins/omg.gif[/img] [img]graemlins/omg.gif[/img] :eek: From the v8ers around town. And I love how I can hear it over my $2k in stereo when I let it rip. The best part is the stock muffler that makes me look normal, open that cutout and It can be heard blocks away, but isnt really that bad in the car.
            97 Special Edition Bird , Short bus stlye special

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