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Recommendation for an exhaust cutout?

Discussion in 'Engine & Drivetrain' started by AN292, Oct 28, 2020.

  1. AN292

    AN292 TYF Newbie

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    2004 Tahoe LT 5.3

    Stock exhaust system right now. Would love an electric cutout, any brands you recommend? Thanks
     
  2. Galante

    Galante Supporting Member

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    Whatever you buy make sure it’s name brand, the cheap ebay stuff tends to not seal up completely and leak, motors stop etc.
     
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  3. Joseph Garcia

    Joseph Garcia Supporting Member

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    There was an extensive thread recently on exhaust cutouts. I believe that @iamdub was a major contributor to that thread.
     
  4. Galante

    Galante Supporting Member

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    Got it from him...... lol
     
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  5. iamdub

    iamdub Full Access Member

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    You get what you pay for! The cheap ones leak, and I don't mean so much past the butterfly blade. That wouldn't be the worst of it. They leak through the hole that the rotating shaft goes through. This is like having a tiny pinhole leak in your system (because that's exactly what it is), so you get that wonderful sound that's very much like a failed exhaust manifold gasket.

    Doug's Headers has a unique design that they claim to be 100% leak-free:

    https://www.amazon.com/Dougs-Header...6d028b90c658c198f5648695a76587&language=en_US


    Then there's the ol' fallback/tried-and-true units from QTP:

    https://www.amazon.com/QTP-QTEC30-E...951PGMVD8BP&psc=1&refRID=09D2983JN951PGMVD8BP

    Granatelli and BadlanzHPE have similar designs that seem to be good quality.
     
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  6. AN292

    AN292 TYF Newbie

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    Thanks everyone, I went with Granatelli. Any advice with wiring it up?
     
  7. homesick

    homesick Full Access Member

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    I've always wondered about these, in general...

    Whatever the initial build and material quality are, it seems to me that they'd carbon up and become leakers. Like the flap would become unable to completely close or open.

    Anybody know?

    joe
     
  8. iamdub

    iamdub Full Access Member

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    I wondered the same. I guess it depends on how or how well your engine is tuned. Unless you welded pipe on the cutout outlet, it shouldn't be anything difficult to clean- unbolt the pipe and scrub it with a small, stiff-bristled wire brush. I'd think that by the time this happened, it/they'd have been in use for quite some time, so it shouldn't be like a quarterly maintenance item. Probably more like every year or three.
     
  9. iamdub

    iamdub Full Access Member

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    What kind did you get (model number)? Do they all come standard with a controller or is that an additional accessory?
     

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