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Thread: Flowtech

  1. #1

    Default Flowtech

    Anyone ever use the Flowtech Afterburner muffler?
    Matt
    1987 GMC Sierra Classic 5.7TBI


  2. #2

    Default

    I replaced the whole exhaust except the manifolds. Its 3" from the Y-pipe back, high flow cat and the FlowTech Afterburner muffler. Below I have a link for the short video I made to see what people think of the sound. Tell me what you think of it.

    LINK:[media]http://youtube.com/watch?v=C0esfn9zXPU[/media]

  3. #3
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    Default

    Hey Matt that sounds pretty good. What brand Hi-flow cat did you go with.

    KRIS
    2007 GMC Sierra CrewCab 4.8L
    Tinted Windows, 20" Chrome MB Predators on 275/55/20 Copper AT's, GM Bed Rug, Speed Scene Chrome Grille, Putco Chrome Handles, Hypertech Max Energy Programmer, Magnaflow Muffler and many more mods to come.
    Former GM Vehicles:
    96 Chevy Camaro. My first car modded for a High School kid.

  4. #4

    Default

    It is a Magnaflow I bought at Advance Auto Parts. I got the muffler and cat there. My dad kinda thinks its to loud cause he was inside his F*rd diesel and he could hear it, mines louder..YAY
    Last edited by MD4x4 Fireman; 01-05-2008 at 05:59 PM. Reason: added something

  5. #5
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    Default

    If you don't mind me asking how much are they at Advance? I'll be putting those on when I do my exhaust and am just trying to find the best price.

  6. #6

    Default

    mine was like $97+tax. just go to advance auto parts website and they have prices on there.

  7. #7
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    Default

    O.k cool thanks. Did you go with one or two.

  8. #8

    Default

    i used 1 but thats all that was on my truck from the factory

  9. #9

    Default

    Yo Matt sounds good brother Do you have headers ? That will make the sound so much deeper , plus 2 or 3 more HP


    Kris Im workin a deal with high flow cats and headers I will Pm you the info


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  10. #10

    Default

    well since it aint been on the street driving around in a few years i think once i start driving it more it will sound better. plus right now my belts sqeal(sp?) like hell. once i get a full time job and a house i plan on getting a new project truck and do that the way i want not the cheapest way possible.

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