IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Cutting Cats off of '06 IS250

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Old 03-07-16, 06:32 PM
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Tylerc77
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Default Cutting Cats off of '06 IS250

My cats are bad, I want them gone, I do not have emissions so that's not an issue. I just don't want any check lights come on. I'm wanting to cut off both cats and put just a straight pipe in its place.
What are the aspects I need to worry about?
I cut them off of a 95 Honda Accord before, but that is a whole different world.
Need help!
Just simple instructions on how would be very much appreciated.
Old 03-07-16, 07:42 PM
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Bichon
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Are you sure your cats are bad? If you are condemning them due to P0420 and P0430 codes, be aware that the most frequent cause of those DTCs is an exhaust leak under the heat shield at the Y pipe.
Old 03-08-16, 06:34 AM
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Tylerc77
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No codes, just that god awful smell.
Old 03-08-16, 06:34 AM
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Tylerc77
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Is it more worth it just to get unclogged (of possible).
Old 03-09-16, 06:49 AM
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cleethree
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I thought my cats were bad because of smell. It ended up being my plugs.
Old 03-09-16, 10:04 AM
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Eduskator
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Originally Posted by Tylerc77
Is it more worth it just to get unclogged (of possible).
Yes it is... for the environment especially lol.

Laws should be reinforced...

Last edited by Eduskator; 03-10-16 at 04:49 AM.
Old 03-10-16, 01:56 AM
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JDUB509
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won't pass smog if primary cat is deleted
CEL light will come on also
it will get louder though
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