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High Flow Cats

Discussion in 'Performance & Fuel' started by MTM, Nov 7, 2011.

  1. MTM

    MTM Rockstar ROTM Winner 100 Posts

    While high flow cats give me better fuel mileage?
  2. vncj96

    vncj96 Epic Member 5+ Years 1000 Posts

    your trucks current cats are just fine, hi flo cats are a joke, modern cats are good for 400hp.
  3. Metaluzc

    Metaluzc Rockstar 4 Years 100 Posts

    Only reason to get hi flow cats is if you NEED to replace the stock ones or you find a great deal on some aftermarket ones.
  4. sstoner911

    sstoner911 Epic Member 5+ Years 1000 Posts

    X2....Unless you need to replace a bad cat the aftermarket ones are not any better the OEM cats.
  5. MTM

    MTM Rockstar ROTM Winner 100 Posts

    Wow i'm very glad that i posted this.....glad i didn't buy cats

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