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Anyone hollowed out their cats?

   
Old 04-21-2015, 01:32 AM
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Default Anyone hollowed out their cats?
So I want to hollow out my cats, but I've heard you need an aftermarket replacement ECM to permanently delete the O2 code and do any performance adjustments, I'm NOT talking about a flash programmer "edge, gryphon, superchips, or bullydog" so what I'm asking is does anyone know of a company that sells a aftermarket replacement ECM?
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Old 04-21-2015, 01:38 AM
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I'm pretty sure you actually can do that with a flash programmer by turning off specific 02 sensors. Most people just replace the cats with a piece of pipe instead of taking the time to hollow them out. Also have heard of using some kind of spark plug adapter on the 02's that makes them stick away farther from the pipe to trick the computer.
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Old 04-21-2015, 05:55 AM
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Why do you want to "hollow out" the cats?
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Old 04-21-2015, 08:51 AM
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Originally Posted by Bucko
Why do you want to "hollow out" the cats?
Probably to pass inspection but, to make the truck louder, that's my guess.
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Old 04-21-2015, 01:08 PM
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It's aginst the Law...
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Old 04-21-2015, 01:59 PM
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Originally Posted by techrep
It's aginst the Law...
so is removing them...
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Old 04-21-2015, 04:34 PM
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Ain't against the law in my county. Thunder still passed inspection without cats! Depends on the emissions laws where you're at...
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Old 04-21-2015, 04:44 PM
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Originally Posted by Storm Chasing Ford
Ain't against the law in my county. Thunder still passed inspection without cats! Depends on the emissions laws where you're at...
It's against FEDERAL Laws - regardless of the trailer park, hick town yall live at

Salut!
Last edited by MGD; 04-21-2015 at 04:49 PM.
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Old 04-21-2015, 07:08 PM
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Originally Posted by Storm Chasing Ford
Ain't against the law in my county. Thunder still passed inspection without cats! Depends on the emissions laws where you're at...
What's an inspection? Lol, I love living in Hicktown USA
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Old 04-21-2015, 07:58 PM
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Originally Posted by blue thunder06
So I want to hollow out my cats, but I've heard you need an aftermarket replacement ECM to permanently delete the O2 code and do any performance adjustments, I'm NOT talking about a flash programmer "edge, gryphon, superchips, or bullydog" so what I'm asking is does anyone know of a company that sells a aftermarket replacement ECM?
Just buy hi-flow cats..
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