IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

Secondary cat delete

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Old 04-17-17, 12:08 PM
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jivoz123
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Default Secondary cat delete

I was wondering if anybody has done a secondary cat delete on a Is200t or rc200t, I'm considering it but I want to know more before I go for it
Old 04-17-17, 01:34 PM
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pnoygil
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Do you mean then two small resonator? The cat is single piece but two cat inside
Old 04-17-17, 03:02 PM
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jivoz123
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Originally Posted by pnoygil
Do you mean then two small resonator? The cat is single piece but two cat inside
on the Lexus is200t models there is a double catalytic converter from what I know, the first one is right near the headers and the second is right after that, then comes the resonators then mufflers
Old 04-17-17, 03:13 PM
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jivoz123
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Isn't this a secondary cat
Old 04-17-17, 03:23 PM
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Lveyolfe
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Does my '14 IS250 have secondary cats? I've been interested in doing this but idk if I can or not
Old 04-17-17, 03:49 PM
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Torii
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if you remove cats on some vehicles it will cause the computer to mess up at certain altitudes and may blow your engines. yes this happened to me in a nissan with 10k miles. it was a nightmare trying to get fixed under warranty...10k for new engine
Old 04-17-17, 04:11 PM
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jivoz123
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I wanted to take it out because I heard that the horsepower gains are pretty good on turbo cars but I could be wrong
Old 04-18-17, 12:33 AM
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pnoygil
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Anyone can confirm this that is catalytic converters or resonator? Planing to delete it. Thanks
Old 04-18-17, 02:30 AM
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Lveyolfe
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Originally Posted by pnoygil
Anyone can confirm this that is catalytic converters or resonator? Planing to delete it. Thanks
I have a Tsudo axle back with resonator delete. It sounds nice IMO. But I'd like it to be louder, which is why I was wondering about deleting the secondary cats.
Mh friend has his secondary cats deleted off of his Genesis and that thing sounds nasty! It's a deep sound with some pops at higher rpms
Old 04-18-17, 10:42 AM
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Crossxup11
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Let's not forget that its illegal, and you spew harmful chemicals on passersby and people on sidewalks.
Seems like kind of an immature thing to me, I'd maybe have considered it in high school.
There are plenty of ways to increase power and sound without wrecking the air people breathe around you.

To each their own.
Old 04-18-17, 12:08 PM
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Sheddy
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Deleting the cat on an IS/RC200t would require a downpipe.

STOCK


De-catted downpipe (not smog legal)

High flow catted downpipe (Legal)

The other 2 canisters are your resonators.

Last edited by Sheddy; 04-18-17 at 12:15 PM.
Old 04-18-17, 02:44 PM
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SikhSipahi
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Might throw CEL, Also upgrading downpipe will mostly require a tune.
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