Only replacing one cat with high flow cat?
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Junior User
Joined: May 2018
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Only replacing one cat with high flow cat?
Hello all, in another post I was pointed in the direction of replacing my bad cat with an after market “high flow” cat. These seem to be cheapest and the best bang for the buck. Here’s my question, only one of my cats are bad (bank 2). Can I replace just this cat with a high flow and leave the rest of them stock? Or will doing so throw off fuel trims and timing with the differences in exhaust flow through the different catalytic converters? Thanks in advance for any help on this.
Elder User
Joined: Aug 2018
Posts: 579
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From: Riverbank, CA.
Replacing the one cat will be fine.
That being said, if one is gone then the others probably won't be far behind. I know it's a costly venture to replace all four (as well as all four O2 sensors) at the same time, but you'll save in labor in the long run.
That being said, if one is gone then the others probably won't be far behind. I know it's a costly venture to replace all four (as well as all four O2 sensors) at the same time, but you'll save in labor in the long run.
Freshman User
Joined: May 2019
Posts: 31
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Ca
I've found out Ford no longer makes cats anymore ssd's o they are aftermarket o2 sensors not all go bad
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