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I am a GM technician in Calgary that understands the heated oxygen sensor system that monitors catalytic converter efficiency. I recognize that cat removal is illegal, sets dtc's and voids warranty. Ive seen many products for sale to supposedly remedy these problems, and i understand how they operate. I want to know WHICH PRODUCT IS THE BEST??? for avoiding a DTC and check engine light after removing the catalytic coverters knowing that the air fuel ratio in OBD II cars normally fluctuates slightly above and below 14.7:1. There are quite a few products to choose from out there. Want to know which one is the best. Thanks for the advice.
 

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:WTF Probably not the answer you're looking for, but WHY remove the cats?

Unless you are planning to use it for non-street racing purposes, the little power you gain will be so small compared to what it already has that it simply makes no sense to me to remove them. There are way too many other mods that can be done to up the power and torque, without resorting to illegal acts that also harm our environment. :crazy:

I feel we all need to begin to be more responsible, or there won't be a world left to drive Corvettes in in the not too distant future.

Not intended to be a flame toward you, but it's really an awful idea that you propose.
 

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:WTF Probably not the answer you're looking for, but WHY remove the cats?

Unless you are planning to use it for non-street racing purposes, the little power you gain will be so small compared to what it already has that it simply makes no sense to me to remove them. There are way too many other mods that can be done to up the power and torque, without resorting to illegal acts that also harm our environment. :crazy:

I feel we all need to begin to be more responsible, or there won't be a world left to drive Corvettes in in the not too distant future.

Not intended to be a flame toward you, but it's really an awful idea that you propose.
He didn't ask for your view on environmental science and our earths atmosphere...... Save it for a different thread!!!!

Someone will be able to answer your question without giving you a tree huggers speech!
I woud also like to know the answer....... anyone??
 

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Use a tune to get rid of those nasty codes...global warming is a crock anyways,just ask the Cleveland Indians.....:rolling:
 

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Discussion Starter #8 (Edited)
Why Get Rid Of The Cats?!?!

Why would I want the cats removed? Because Have you ever seen what they do to your engine WHEN , not if they plug up? They cause major engine damage. You can expect the rear 2 cylinders of the the bank that plugs up to wear out and lose compression real fast from the blocked in heat, i see this happen sometimes on vehicles at work. Plus this is only part of many upgrades that i would plan on doing. 15 horsepower is 15 horsepower.
 

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Edit for content. Don't attack members. If you don't have info for the thread then don't post in it. -Raidmagic
 

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your my hero r1racin4life, it snowed today in chicago...

to the point, ill call up LG motors spors and kooks and see what they recomend, however since you are going to need a tune you might as well have the tuner do it for you by deactivating the rear set (only test for efficiency)
 

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It's 3.75%

I would take a 3.75% increase in horsepower any day for the cost of removing them.......

That 3.75% increase in horsepower could get you to the forest a little quicker so that you can wrap your loving arms around a big redwood!!!
 

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It's 3.75%

I would take a 3.75% increase in horsepower any day for the cost of removing them.......

That 3.75% increase in horsepower could get you to the forest a little quicker so that you can wrap your loving arms around a big redwood!!!

how did you come up with 3.75%? thanks:cheers:
 

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What is this, Mis-information central?

Cats that "plug up"?
Plug up with what? Go to a tech manual that explains how modern catalytic converters work. They don't "Plug up" or fail in any other way unless there are MAJOR issues with fuel delivery, etc.

3.75% HP increase by removing the cats?
That's 15HP. I doubt you can feel that, seat of the pants. And where is that number from, anyway?

Jimmy
 

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He didn't ask for your view on environmental science and our earths atmosphere...... Save it for a different thread!!!!

Someone will be able to answer your question without giving you a tree huggers speech!
I woud also like to know the answer....... anyone??
Well said. :nuts:

Now, the smartest thing you could do is put the $ you'd sink in custom fabbing the pipes to replace your removed cats- put that $ into some off-road (ie without cats) long tube headers and tune out the rear O2 sensors. Now THAT is a worthwhile mod.
 

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What is this, Mis-information central?

Cats that "plug up"?
Plug up with what? Go to a tech manual that explains how modern catalytic converters work. They don't "Plug up" or fail in any other way unless there are MAJOR issues with fuel delivery, etc.

3.75% HP increase by removing the cats?
That's 15HP. I doubt you can feel that, seat of the pants. And where is that number from, anyway?

Jimmy
Once again, the gentlemen who started this thread was not interested in you "thinking' you know what your talking about. He wanted specific information, not opinions on weather or not you think Cats can plug up. But just for kicks, I'll explain to you how a Catalytic Converter can plug up.

They are designed to work in a very sensitive environment. They are designed to operate with a very specific air fuel mixture as well as be right at 1200 degrees. Heat kills Cats.... when doing many things, including top speed passes on the salt flats like Patrick, when your engine endures VERY high RPM's for an extended length of time guess what happens.......the exhaust temperature spikes!!! It gets WAY hot! And kills the cats.

For people who have had their cars tuned.....when you have your car tuned for more fuel, all it takes is a few times dumping a little too much fuel in while trying to get the mixture correct and the cats are DONE!

Bad spark plugs throws off the delicate mixture and your cats are done.

Bad spark plug wires....same effect because of weak or no spark.

So as you can see, there are many ways a modern cat can clog.

BTW, 15 is 3.75% of 400, the factory horse power of a C6.......... in case you still didn't figure that one out.......
 

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Once again, the gentlemen who started this thread was not interested in you "thinking' you know what your talking about. He wanted specific information, not opinions on weather or not you think Cats can plug up. But just for kicks, I'll explain to you how a Catalytic Converter can plug up.

They are designed to work in a very sensitive environment. They are designed to operate with a very specific air fuel mixture as well as be right at 1200 degrees. Heat kills Cats.... when doing many things, including top speed passes on the salt flats like Patrick, when your engine endures VERY high RPM's for an extended length of time guess what happens.......the exhaust temperature spikes!!! It gets WAY hot! And kills the cats.

For people who have had their cars tuned.....when you have your car tuned for more fuel, all it takes is a few times dumping a little too much fuel in while trying to get the mixture correct and the cats are DONE!

Bad spark plugs throws off the delicate mixture and your cats are done.

Bad spark plug wires....same effect because of weak or no spark.

So as you can see, there are many ways a modern cat can clog.

BTW, 15 is 3.75% of 400, the factory horse power of a C6.......... in case you still didn't figure that one out.......
Please re-read my post, for the first time it appears. I pointed out that cat failure is caused by "MAJOR" fuel delivery issues, I didn't mention plug wires or bad spark plugs, my bad. I also state that 3.75% of 400 is 15. Thanks for the attention to detail. You are correct that I didn't answer the original poster and for that, I apologize. I feel strongly that folks throw cats under the bus when there are many reasons (all of which are catastrophic) for catalytic converter failure.

Jimmy
 

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Probably not the answer you're looking for, but WHY remove the cats?

Unless you are planning to use it for non-street racing purposes, the little power you gain will be so small compared to what it already has that it simply makes no sense to me to remove them. There are way too many other mods that can be done to up the power and torque, without resorting to illegal acts that also harm our environment.

I feel we all need to begin to be more responsible, or there won't be a world left to drive Corvettes in in the not too distant future.

Not intended to be a flame toward you, but it's really an awful idea that you propose.

Removing your cats adds 15 horsepower. It also makes your car sound 10 times better. i have a 99 corvette and it has no cats. i hae a 95 chevy truck and it has no cats. Nobody enforces that law, and it doenst harm the environment that much. no worse than some guy smoking his cigarrette, and definately not as bad as say a 69 427 vette, or anyother old muscle car for that matter. I personally do not like cats at all, and i will not have a car with them. He is removing his cats because cats are gay. period.
 
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