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Will Smarty kill the Cat?

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Old 09-12-2007, 09:56 PM
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Unhappy Will Smarty kill the Cat?

I just ordered my Smarty and I'm a little concerned the extra soot will kill the Cat.

Does anybody have any information on what the impact will be to the catalytic converter with all that extra soot?

Is anybody running the Smarty and still have the stock exhaust?
Old 09-12-2007, 10:02 PM
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yes, plenty of guys have the factory cat with a Smarty, no worries
Old 09-12-2007, 11:01 PM
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i do and no problems.
Old 09-12-2007, 11:40 PM
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once you put the smarty on you wont care if it kills the CAT
Old 09-13-2007, 06:48 AM
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It'll take a while for the cat to sufficate.The motor is being harmed by soot more than the cat,again it'll take a while even for the motor,prabably after you trade or sell!!
Old 09-13-2007, 07:55 AM
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Originally Posted by trx
once you put the smarty on you wont care if it kills the CAT

No doubt about that!
Old 09-13-2007, 08:05 AM
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I have heard that if you take off the cat it will throw a CEL on the 5.9 is there any truth to this?
Old 09-13-2007, 08:08 AM
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Originally Posted by trx
once you put the smarty on you wont care if it kills the CAT
THATS RIGHT , WHAT TRX said !!!
Old 09-13-2007, 08:08 AM
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Originally Posted by Neight
I have heard that if you take off the cat it will throw a CEL on the 5.9 is there any truth to this?
What cat??????
Old 09-13-2007, 08:09 AM
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Originally Posted by Neight
I have heard that if you take off the cat it will throw a CEL on the 5.9 is there any truth to this?
removal is against the law unless for off road use...but it does NOT throw a CEL or any CODE
Old 09-13-2007, 09:43 AM
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the higher exhaust temps of the 3rd gens will keep the cat clean, no matter how much soot you make.
Old 09-13-2007, 07:30 PM
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Now there's the answer I was looking for! Thanks.

I would delete the Cat but, I know it's only a matter of time before my state will require smog checks. Also, I don't want to void any warranties yet.
Old 09-13-2007, 07:40 PM
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Originally Posted by Connotaucarius
Now there's the answer I was looking for! Thanks.

I would delete the Cat but, I know it's only a matter of time before my state will require smog checks. Also, I don't want to void any warranties yet.
Well, instead of killing the cat........SKIN it. Or in this case, gut it. It'll be on for dealer purposes and for smog tech purposes. But gutted for your performance purposes.

How does the saying go??? "There's more than one way to skin a cat."
Old 09-14-2007, 12:05 AM
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JPR Ram, skinning a cat is fine as long as it doesn't skin you back in the process.

I've known a few people with gassers that gutted their cat and the smog sniffer caught them right off. They thought they were being smart but, just ended up having to buy another cat.

The engineers that design those pesky little computer gizmo's are pretty smart.

I can't justify damaging a perfectly good part that retails in $800 to $1000 range when I can make a test pipe with a sawsall, some 4" pipe and two 4" band clamps. Just looking to see if I can make it to spring time before I have to do it.
Old 09-14-2007, 12:09 AM
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Oh JPR Ram...,

Gotta love those Dunes! Never made it to Glamis but, I have some fond memories of Pismo beach (ok, Oceano Dunes).


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