Cat removal
Le Mans Master
Joined: Nov 2005
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That's not what I said at all, you'll throw a bunch of codes if you remove them You'll have to tune out things with a programmer to stop all the wailing from the computer. It's a waste of time and money.
Le Mans Master
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spend the money and buy a set of long tube headers with or with out high flow cats then get it tuned.
Drifting
Joined: Apr 2007
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From: Broward County Florida
Some people who've had them say they're too loud but I wish my car was actually louder. Its a sad day when a Nissan 350z can rev louder than a Vette.
I'm told it will be a but louder when I get headers and delete the cats. 
FYI, you're also about to be lectured by people trying to save polar bears and the environment.
Le Mans Master
Joined: Nov 2005
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Removing cats for a regular street car is almost a waste and by the time you have the codes tuned out and spent the money to bypass them, you could have bought a legal mod to get the same power. If you just want noise, get some of those electric cutout, you should be able to cause some coal mine cave-ins there in the hills of WV with the noise you'll make. Silent but deadly is much better anyway.
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Thread Starter
Advanced
Joined: Aug 2009
Posts: 70
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From: West Virginia
WV Coal Mine
Removing cats for a regular street car is almost a waste and by the time you have the codes tuned out and spent the money to bypass them, you could have bought a legal mod to get the same power. If you just want noise, get some of those electric cutout, you should be able to cause some coal mine cave-ins there in the hills of WV with the noise you'll make. Silent but deadly is much better anyway.
Safety Car
Joined: May 2006
Posts: 3,799
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From: Northern Virginia
St. Jude Donor '08
If you are going to drive the car on the street then do not remove the cats. The almost undetectible increase in HP is not worth all the problems of running no cats.
Also, it is against federal law to remove the cats.
Also, it is against federal law to remove the cats.
Thread Starter
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Joined: Aug 2009
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From: West Virginia
I drive the harley more and it has no cats. I know what the federal law is. My question was would it throw codes, which has been answered and what would the sound change be in the exhaust, which has not been answered.
Race Director
Joined: May 2005
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From: West Norriton PA
St. Jude Donor '08
BTW, independent1 is my brother and works for the EPA.
Unless you're using the car for off-road purposes, there is no reason to remove the cats. You and your car will stink to high heaven.
The smell both inside and outside the car is obnoxious. You don't even need to look to see that the car doesn't have cats, you can smell it.
Also you will have to replace the cats before selling the car or you could get a serious fine and even thrown in jail for a few years.
Furthermore, O2 similators are illegal and you would be hard pressed to find them for sale anywhere as the EPA has gone after all of the manufacturers of these items.
Premium Supporting Vendor
Joined: Oct 2004
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From: Manassas Park VA
St. Jude Donor '07-'08,-'13-'14, '16-'17
I agree with the above, long tubes with an "off road" section, instead of the HF cat section...
By the way, you can get the HF cat section from Random Tech, but it is half the price of long tubes...
Peace
Chip
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Unless there is a problem with your current cats, I'd see no reason to take them off. You won't gain much in the way of performance. If you want a louder exhaust, just get an aftermarket catback system.
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From: West Virginia
It will be "Fuller" sounding and maybe 10-15 % louder Mark.
I agree with the above, long tubes with an "off road" section, instead of the HF cat section...
By the way, you can get the HF cat section from Random Tech, but it is half the price of long tubes...
Peace
Chip
I agree with the above, long tubes with an "off road" section, instead of the HF cat section...
By the way, you can get the HF cat section from Random Tech, but it is half the price of long tubes...
Peace
Chip
Thread Starter
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Joined: Aug 2009
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From: West Virginia
Epa
I do not give a rats azz if your brother is with the EPA or CIA. If you and him both want to come to West Virginia and go face to face I will be happy to ablige you. Otherwise as Barney would say Nip it in the bud. Thanks for all the useless information and go back to hunching a tree. This is Mountaineer Country. Mark A. Cvechko 
Safety Car
Joined: May 2006
Posts: 3,799
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From: Northern Virginia
St. Jude Donor '08
I do not give a rats azz if your brother is with the EPA or CIA. If you and him both want to come to West Virginia and go face to face I will be happy to ablige you. Otherwise as Barney would say Nip it in the bud. Thanks for all the useless information and go back to hunching a tree. This is Mountaineer Country. Mark A. Cvechko
You would do well to listen to the people telling you that running without cats on the street is not a good idea. However, the final decision is yours.
FWIW, you come across as a flaming azzh0le.
