Catalytic converter HELP?

Question

are there any benefits to taking your cat off


dont give me that illegal crap they dont care in my county

Answer 1

You are actually removing restriction thus increasing performance, for short time only. Cars now are computerized starting 1980's. When the oxygen (lambda) sensor detects that it is too rich, the computer will retard the timing thus decreasing performance.

There is test called a smog test in the USA. All cars in the world have this so called the engine control module. It is a computer. They will try to correct the problem, if not, check engine light will turn on. Sorry to say, that's how they were program.

Answer 2

depends on the vehicle. Most newer cars since efi will get worse mileage since they were made to run with it. Some older ones running bad cats will see a increase in mileage. But far more cars would be worse off with out them. It is illegal weather they test or not in your county and you can be sited but if extremely rare unless they are getting you back and writing numerous others at the same time. If I ran an old carbed truck or car I would run without if not testing. Just know that in the future all states follow cali sooner or later so just know down the road you may need to put it back on 10 years from now. A little back preasure is good on your motor so run some kind of muffler or your exaust all the way to the rear. Some shop can make suggestions to what works best for what you drive.

Answer 3

if its not pluged it wont make any difference,what county doesnt care

With the testing of all three cats out of the way, it was time to unplug the exhaust and let her rip without that pesky brick in the exhaust. No matter how you cut it, a cat is a restriction and costs power, right? With the moment of truth at hand, we bolted in our test pipe - eliminating the cat entirely. On our final pull we stood eagerly by the dyno's monitor, waiting to see the results. Wait ... here it comes ... 152hp and 108 lb-ft - a gain of one measly horsepower and one lb-ft of torque at the cost of breaking the law.

The Lowdown
Now that we've armed you with the facts, you should be ready to make the correct decision should you need to replace your cat. Whether or not you choose to run a cat is between you and Johnny Law. But when you consider the potential gains versus the costs, it hardly seems worth risking getting caught. With a difference of only 1hp between a straight pipe and a 49-state LEGAL cat, it seems foolish to flaunt the law and pollute the air that we all breathe. Hell, if you are only looking for those kinds of gains, just loose 10 pounds -that alone will make your car faster than adding 1 measly HP

Answer 4

Any vehicle made since the late eighties needs the cat in order to operate properly.

Answer 5

It helps if it's clogged. If you're in one of those counties, you just ask the muffler guy to put a "test pipe" in place of the cat.

Answer 6

big v8 engines go for it but foreign cars or any newer cars you need it , all these cars need a little back pressure best bet is to leave it alone.

Answer 7

you wont notice anymore then if you keep it on.all you are doing is messing up the emissions.