Removing converters

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2009-2015 Cadillac CTS-V General Discussion Discussion, Removing converters in Cadillac CTS-V Series Forum - 2009-2015; Has anyone removed the cat. converters on one of these? I wanted to try and just run the stock exhaust ...
  1. #1
    Cub Cadet Guest

    Removing converters

    Has anyone removed the cat. converters on one of these? I wanted to try and just run the stock exhaust without the converters. Is there anything out there for this, or is it down to just cutting them out and welding in new pipe? I want to run through the stock exhaust without those for now. I will not have to worry about emissions control in the future.

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  3. #2
    v4meinsandiego is offline Cadillac Owners Fanatic
    Automobile(s): none
    Join Date
    Jan 2010

    Re: Removing converters

    Your O2 sensors will throw a code because they are removed and you will see a check engine light come on. Plus, your car will stink. Save the atmosphere and don't do it. You can buy hi flow cats and satisfy the sound you want but keep it safe for the envirconment.

  4. #3
    GM-4-LIFE's Avatar
    GM-4-LIFE is offline Cadillac Owners Connoisseur
    Automobile(s): 2014 MN6 V Coupe, 2015i Escalade Premium
    Join Date
    Apr 2007
    Los Angeles, CA

    Re: Removing converters

    I kept front cats and removed the rear cats which didn't cause any codes or any Check Engine Lights to come on and the car runs just fine!

  5. #4
    Cub Cadet Guest

    Re: Removing converters

    How easy is it to remove all 4? I would love to have them off of there. I was planning on getting a tune after so that the codes can be tuned out.
    As for the smell, it isn't that bad. I have run Mustangs for years without them.
    I was not sure if aanyone makes something that would go from the stock manifolds, no converters, through the stock mufflers. I think that the stock exhaust would sound pretty good if it was opened up some.

  6. #5
    GMX322V S/C's Avatar
    GMX322V S/C is offline Cadillac Owners Connoisseur
    Automobile(s): 2009 CTS-V, 2009 535i
    Join Date
    Dec 2008

    Re: Removing converters

    Wait4Me has such an exhaust, although it's a straight-pipe out to the bumper. You'll need to saw off the ends to band-clamp to the stock mufflers.

  7. #6
    1-2-N-V is offline Cadillac Owners Fanatic
    Automobile(s): 2009 CTS-V
    Join Date
    Apr 2009

    Re: Removing converters

    Well i don't think one more guy cutting his cats out will matter all that much once the Chinese trade all their bikes in for 4 wheels. That's when the

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