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high flow cats

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Jan 26, 2020 | 09:55 PM

#11

MoparFanatic21

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Joined: Nov 2014

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Quote:

Originally Posted by HeyYou

Yeah, if you completely remove the cat entirely, you will need to do something with the rear O2, the PCM uses that to monitor cat efficiency... if there is no cat, then it ain't real efficient, and the PCM will whine.

Easy to work around though.

Did I say the right thing?

I thought that is what they are called

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Jan 27, 2020 | 08:12 AM

#12

HeyYou

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From: Clayton MI

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Quote:

Originally Posted by MoparFanatic21

Did I say the right thing?

I thought that is what they are called

Yup. I think there is a thread about it in the FAQ section here as well.

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Jan 29, 2020 | 12:30 PM

#13

1997JollyGreenGiant

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From: Somewhere in Kentucky

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My truck had no cat on it when I bought it. I like to follow the law (even though there are no emissions inspections in my area), so I put the high flow Magnaflow cat on my truck, it's been great, I've been happy with it.

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Old

Jan 30, 2020 | 12:06 PM

#14

KillerLemming

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Joined: Feb 2019

Posts: 181

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From: Northern Illinois

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Either keep the cat how it is or straight pipe the cat, a high flow cat really won't do anything

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