GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

catalytic converters delete help

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Old 01-21-13, 08:25 PM
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Charlie088
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Default catalytic converters delete help

I'm thinking about deleting my cats. I believe our cars come with four. Mainly doing out for a little bit more noise. I already deleted the resonator and is running aftermarket mufflers but I would like a little more noise. I've read a coupe threads staying that if we remove our cats it will throw a cel. I was thinking can I some kinda way use this electriced muffler cut off valves and x pipe it to my mufflers? I can clear the cel come inspection time and still have the factory cats. Or could I get hi flow cats for a more better tone?
Old 01-21-13, 10:04 PM
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designo
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First of all, is your car a V8 or V6?

If de-cat your V6, you might not like the raspy sound, unlike the V8's.

Also, your car has mufflers as axle-backs. The come the mid pipes which have your secondary cats on them and a resonator. You can de-cat that pipe or replace it with a resonated mid pipe. ( Which is what you have in mind doing )

Your primary cats are attached to your exhaust manifolds.

Your car will not throw a CEL is you decat or replace your mid pipes. I have done it and I have no issues!

Old 01-22-13, 06:24 AM
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passnu2
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I suggest to convert it a true dual exhaust and just get rid of the mid cat but leave the primary ones in place. As for sound are you a V6 model or V8?
Old 01-22-13, 06:34 AM
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Charlie088
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Originally Posted by designo
First of all, is your car a V8 or V6?

If de-cat your V6, you might not like the raspy sound, unlike the V8's.

Also, your car has mufflers as axle-backs. The come the mid pipes which have your secondary cats on them and a resonator. You can de-cat that pipe or replace it with a resonated mid pipe. ( Which is what you have in mind doing )

Your primary cats are attached to your exhaust manifolds.

Your car will not throw a CEL is you decat or replace your mid pipes. I have done it and I have no issues!

Thanks guys. Its a v6. Can I replace the mid cats with just pipe?
Old 01-22-13, 06:45 AM
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AustinSBP
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Originally Posted by designo
First of all, is your car a V8 or V6?

If de-cat your V6, you might not like the raspy sound, unlike the V8's.

Also, your car has mufflers as axle-backs. The come the mid pipes which have your secondary cats on them and a resonator. You can de-cat that pipe or replace it with a resonated mid pipe. ( Which is what you have in mind doing )

Your primary cats are attached to your exhaust manifolds.

Your car will not throw a CEL is you decat or replace your mid pipes. I have done it and I have no issues!

u sound like you may have done this to a V8 as well.. im pretty curious about de-catting my V8
Old 01-22-13, 08:28 AM
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designo
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Originally Posted by AustinSBP
u sound like you may have done this to a V8 as well.. im pretty curious about de-catting my V8
Do a search on me bro, and check out my signature!
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