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Catted or none catted mid-pipe

Discussion in 'Coyote Series Engines' started by fordcoon, Oct 26, 2017.

  1. fordcoon

    fordcoon New Member

    Oct 26, 2017
    I plan on running long tube headers but I'm not for sure if I want to run with cats or non cats. Its because I live here in Texas and you have to pass emissions. I wonder if there's a way i could get a tune and run without cats and still pass emissions has anyone encounter this before.
  2. 2012 Boss 302

    2012 Boss 302 Member Established Member

    May 21, 2012
    Sugar Land, TX
    I have no cats and an AED tune. I pass the OBD test no problem. A good tuner can work around the cats and rear o2 sensors

    IMHO the extra $$ spent on aftermarket cats is a waste. I am a mechanic and have installed "green cats" or "high flow cats". I feel like they are cats in name only. In order to be high flow the cell count must be lower, consequently they don't clean as well and will set a P0420/430 code.....

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