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  • Does anyone have a cutout?

    I need help placing a e-cutout I don't know whether it should be in front of the cat or before or does it even matter ? Also is there a sound differnce? Also what cut out do u recomend?


    98 firebird v6 3800

  • #2
    Re: Does anyone have a cutout?

    I have mine before the cat, I have an aftermarket shorter cat so there was room in the front to put it. Plus I have hptuners to tune out the o2 sensor that is normally after the cat and triggers a SES light if you put the cutout before it.

    I suggest seeing where you have the room for it and go from there.

    I run a 3" e-cutout from DMH. QTP makes a nice one too

    And for a sound difference, ummm, I am not sure if you are serious on that. I hope it was a joke.
    http://www.bowtiev6.com/

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    • #3
      Re: Does anyone have a cutout?

      [QUOTE=97rs4life;910417]I have mine before the cat, I have an aftermarket shorter cat so there was room in the front to put it. Plus I have hptuners to tune out the o2 sensor that is normally after the cat and triggers a SES light if you put the cutout before it.

      I suggest seeing where you have the room for it and go from there.

      I run a 3" e-cutout from DMH. QTP makes a nice one too

      And for a sound difference, ummm, I am not sure if you are serious on that. I hope it was a joke.[/Q

      No seriously is there a sound differnce depending on where u put it ?

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      • #4
        Re: Does anyone have a cutout?

        yes there is.
        http://www.bowtiev6.com/

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        • #5
          Re: Does anyone have a cutout?

          Originally posted by robert View Post
          No seriously is there a sound differnce depending on where u put it ?
          the further up in the exhaust you put it, it becomes exponentially louder

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          • #6
            Re: Does anyone have a cutout?

            I have a QTP 3" cutout , I had it before the muffler in the rear running a Summit turbo muffler 3"in/out 3" turndown. Opening the cutout at all just made the car sound horrible, I couldn't guess how bad it would sound even up towards the CAT. This is with a VS cam , RK Sport headers, 3" exhaust , no cat. I took that all off and put on a Dynomax Turbo muffler 3" in/out with 3" turn down and it sounds so much better, doesn't even need a cutout, nice deep tone at idle and through the gears and no rasping even at 5900 RPMS. I'm putting on a turbo setup so I may still use it too see how the turbo likes the cutout.
            08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
            96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

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