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flowmaster 40 series and what now?

This is a discussion on flowmaster 40 series and what now? within the Exhaust forums, part of the Performance category; about a week ago i chunked the old glasspack and put an original 40 series dual out dumped under my ...

  1. #1
    Registered User isenegger's Avatar
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    flowmaster 40 series and what now?


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    about a week ago i chunked the old glasspack and put an original 40 series dual out dumped under my truck...it sounds good idleing but when i get on it you cant really hear it..i would like it to be loud...should i gut the cat or just leave it alone and get used to it?...thnks
    2004 Tahoe Z71 Pat G tune
    1998 Silverado C3500 CCLB 2wd

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    Dirty, Baraka, "B" DirtyBlackHoe's Avatar
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    Re: flowmaster 40 series and what now?

    why did you get rid of the glasspacks should prolly be the first ?

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    Joe
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    Re: flowmaster 40 series and what now?

    Define loud? I run a Fowmaster 50 on my 5.3l and it is plenty loud under power

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    Whiskey do my talkin... BigRed2500HD's Avatar
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    Re: flowmaster 40 series and what now?

    If you dumpt it right under the truck then your going to lose some sound from hitting the ground. At one time I took the pipes off my dual 40 series setup and it wasnt nearly as loud with the pipes to the corners with 4inch tips.

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    Registered User isenegger's Avatar
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    Re: flowmaster 40 series and what now?

    ive had glasspacks on two different trucks now..on was a f150 w/ a 6 cyl and now this one.. i wanted something louder....it sounds good now but it is not annoying....i want the person next to me at a red light get mad when i take off or rev up...i want it to be the loudest it can be...
    2004 Tahoe Z71 Pat G tune
    1998 Silverado C3500 CCLB 2wd

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    A Crazy Ass Cowboy!
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    Re: flowmaster 40 series and what now?

    I have the flowmaster 40 series on my 4.8 and it sounds good.

    2009 Silverado Ext Cab Vortec 4.8L V-8 Flowmaster Exhaust 40 Series K&N Air Filter Spray In Bedliner Tinted Windows.......New Pics coming soon!

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