Gutting STi turbo back worth it?

Discussion in 'Modifications And Maintenance' started by redheat86, Sep 25, 2006.

  1. redheat86
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    redheat86 Well-Known Member

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    Soo i like to keep things mostly stock. Would it be at all worthwile to gut the factory cats on the downpipe?

    After gutting id be looking at a pro tune and thats basicly it for power mods.

    Also does anyone know if the factory Sti muffler is straight through or chambered?
     
    redheat86, Sep 25, 2006
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  2. readymix
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    readymix ...Lest ye be trod upon... Staff Member

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    No, gutting the downpipe is a pain in the butt. You'd be better off buying an aftermarket downpipe with a divorced or bellmouth design. You CAN gut the midpipe cat very easily.
     
    readymix, Sep 25, 2006
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  3. Shane86
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    Shane86 Well-Known Member

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    if your cheap and have a lot of time, then yes. gutting the STi turbo back will gain you some pretty good power gains.

    But... with even the cheapy bellmouth downpipes going for $100 on ebay, you might as well pick up one of those. and gain nice smooth hp.

    it won't last as long as a name brand, but it WILL get you some nice HP while it's intact.
     
    Shane86, Sep 26, 2006
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  4. redheat86
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    redheat86 Well-Known Member

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    I know the ebay downpipe option is always available. Id prefer to stick with factory pipes ported and gutted for ease of use and appearance.

    thanks
    ben
     
    redheat86, Sep 26, 2006
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