concerns about removing cat converter

[joserivas19]

i took my cat converter off like 3 months ago, but i was wondering if that would hurt my car in any way? it sounds louder which is what i wanted, but people have been telling me that it'll screw up the computer since the "service engine" light is on all the time. is that true? what can i do to remove the light?

[Gr1m]

it has something to do with the o2 sensor if i remember correctly, it wont hurt your car but if you get caught with it like that you will be fined hefty, atleast in new york

[joserivas19]

oh ok. thanks. i've heard that the high flow cat converters are good. is that true? i just want it to sound loud and clean. what can you recomend me?

[DaRockwilder]

Get a high-flow cat. Your car probably sounds like crap without it.

[shiny alero]

that sound is the sound of money going right to the courts if you get cought.

[Gr1m]

yep, i dont think i would ever take my cats off. for the price you will be fined if caught, you could buy a new alero lol

[pimpalero2003]

just put a cat back on and have no resanator(cant spell) and a straight thru muffler or no muffler!

[Redog]

Yeah you're in big trouble if you get caught.

A car with no cat has a certain kinda of smell, at least I've been told. In fact the shop that did it could be fined too. Get a high flow cat put on ASAP. Do even think about getting a straight pipe with a cat shell, they can tell that too, they tap it and it sounds hollow, you're in trouble.

The O2 sensor will set a SES light with anything other that the orignal cat on it. You can get an O2 sim from www.pfyc.com (http://www.aleromod.com/forums/www.pfyc.com) which will tell your PCM that everything's OK. A car with an ses light on, will fail inspection in PA, and I'm pretty sure that in all 50 states a car will fail inspection without a cat on it

[Gr1m]

i just helped my friend take the cats off his Z and he told me that if he gets caught, they will fine him for around 250$ and then report you to like an environmentalist group who could then sue you for anything between $10-15k

[Jferg2223]

Indiana doesnt have inspection

[Satsuriku]

dude your outta your mind for taking off the cat. if anything, just hit ebay up and get a magnaflow high flow cat, should only cost ya like $110......its a hell of alot cheaper then getting busted and the courts rip your wallet outta your ass going through your throat

Indiana doesnt have inspection

and thats just fucking retarded!

[joserivas19]

oh ok. thanks for the input. i will try to buy one this paycheck and get it put on again. i did it in mexico. im from southwest AZ and the really dont care over there, but im getting transfered to WA and i might get in trouble if i get caught then. so a recap, get a high flow converter and a hollow muffler then? will duals straight from the cat be any good? my car sounds really good right now without it, but i dont wanna get in trouble.

[HazMatt24]

my roommate just took his car through emissions with no cat and passed. They just looked for a fuel cap, hooked up the OBDII and since it didn't throw a code he passed

[joserivas19]

what state is he in? cuz in heading up to WA and i dont know if they do emission checks or not over there, and i sure dont wanna get fined for not having it on.

[HazMatt24]

Az Ftw

[joserivas19]

can anyone get me the link for the O2 sensor from pfyc.com ive looked but with no luck. thanks. :(

[clutch1]

WI doesn't have a check either! woohoo, they sound ludicrous in some areas (not passing for having after market lighting present, etc. :S).. but I'm sure there are a plethora of ways to get unlucky and have a cop figure out..

Like say they pull you over for loud exhaust and decided to look under the car.. no cat = uh oh.

Do what they all said, replace it with something better, but for sure put one on soon.

[Gr1m]

here ya go buddy
http://www.zzperformance.com/grand_prix/products1.php?id=179&catid=107

[Spilner521]

can anyone get me the link for the O2 sensor from pfyc.com ive looked but with no luck. thanks. :(
You don't need it. Get the Magnaflow high flow cat. They are OBD2 certified and will not throw a SES light, therefore you will not need the 02 sim. I know this because I have a Magnaflow cat and it has not ever thrown a SES light, and it's been on my car for over a year now.

[jackal2000]

if there is no inspection then i wouldnt really worry about it. its throwing a code becase the downstream o2 isnt getting a reading. however, that has no effect on performance of the engine. the sole purpose of the downstream o2 is just to check to make sure the cat is working.

[jturkey69]

WI doesn't have a check either! woohoo


Wrong, from Sheboygan down, and from Sheboygan west to the state lines to the Ill border we have inspection every 2 years.

I usually register my shit up in Shawano if i think it won't pass for whatever reason they say.

[whatnot]

I believe here in BC that its perfectly legal to remove a cat on older cars but I'm not too sure about how old.

However it does create some air pollution, and the exhaust gas will smell not so sweet. Since this affects all of us its not generally recommended.

Jm

[AGT]

Indiana doesnt have inspection

dude your outta your mind for taking off the cat. if anything, just hit ebay up and get a magnaflow high flow cat, should only cost ya like $110......its a hell of alot cheaper then getting busted and the courts rip your wallet outta your ass going through your throat



and thats just fucking retarded!



Oklahoma had them but removed them from legislation a few years back.

I like no having inspection and I don't. You get behind a nasty fucking junker you wish you had em.

[antichrysler]

Out here in SK they don't care since we don't have to get the vehicles inspected. I know my buddy took the cat out of his sonoma and when he moved to alberta they made him put it back in.

[joserivas19]

thanks for the link GR1M. i'll probably end up buying that O2 emulator if the high flow cats are too expensive. i checked at the WA motor vehicle website and the county im going into does not require emission test. so, i might be good to go. thanks for all the help you guys. :coolio:

[joserivas19]

what is the size i need to get for a cat converter? ive seen 2", 2.5" and 3". i know 3" is too big but i dont know about the other two.

[DaRockwilder]

Out here in SK they don't care since we don't have to get the vehicles inspected. I know my buddy took the cat out of his sonoma and when he moved to alberta they made him put it back in.

Thats because he had to do an out of province inspection. I think anything 94+ has to have them installed, but you can remove it after that and nobody will give a shit.

[jackal2000]

what is the size i need to get for a cat converter? ive seen 2", 2.5" and 3". i know 3" is too big but i dont know about the other two.

if you plan on ever upgrading your exhaust from the cat back then you might as well spring for the 2.5" now. if you are staying stock then get the 2".

[Jferg2223]

dude your outta your mind for taking off the cat. if anything, just hit ebay up and get a magnaflow high flow cat, should only cost ya like $110......its a hell of alot cheaper then getting busted and the courts rip your wallet outta your ass going through your throat



and thats just fucking retarded!

why is that retarted Indiana doesn't have emission inspections, you aren't suppose to go without your cat but they don't have emission checks and the only thing a cop can do is ask you to put one on. We used to have emission checks but I am glad they don't because the emissions from a car are not nearly as harmful to the environment as semis or dumptrucks. Emission laws are just another way for the government to have just that much more control over you.

[DOHC_tuner]

I removed my cat and had a loud muffler tip to go with it, so it was pretty loud and i didn't like it so i removed the muffler tip and put a real muffler with a chrome tip just to shut it up. Still without the cat but not as loud. But I recommend doing work once you install headers and then go from there so the piping is the same all the way down. Adding a magnaflow high flow cat is not a bad idea so doing this will help your accerleration and i know cause i took and smoke a Honda civic, Honda Del Sol, and kept up with a V6 tiburan.

[joserivas19]

I removed my cat and had a loud muffler tip to go with it, so it was pretty loud and i didn't like it so i removed the muffler tip and put a real muffler with a chrome tip just to shut it up. Still without the cat but not as loud. But I recommend doing work once you install headers and then go from there so the piping is the same all the way down. Adding a magnaflow high flow cat is not a bad idea so doing this will help your accerleration and i know cause i took and smoke a Honda civic, Honda Del Sol, and kept up with a V6 tiburan.


The thing is, i havent found a website that makes headers for the 3400. and i dont know if any other size will fit it. yeah, my car is really loud. i set off car alarms all the time, especially when i turn it on. is there a company that makes headers for the 3400?

[Spilner521]

We used to have emission checks but I am glad they don't because the emissions from a car are not nearly as harmful to the environment as semis or dumptrucks.
Right, but there are millions of more cars on the roads than semis and dump trucks.
Emission laws are just another way for the government to have just that much more control over you.
Emissions laws are there to regulate emissions from motor vehicles like yours and mine. They mandate that you have a functioning catalytic converter on your car to keep the exhaust as clean as it can be. It's not at all about having so much control over you. Actually there have been dyno tests with a high flow cat and no cat, and with no cat you gain 1 hp at the most, plus the Magnaflow high flow cats won't throw codes and will pass emissions. 1 hp is hardly any control over anything.

I'm no tree hugger, believe me, I just don't understand the point of taking off a cat and poluting more than you have to for a measly 1 hp over a high flow cat, not to mention it's louder without one.

[Gr1m]

and had a loud muffler tip
since when do tips make your exhaust louder?

[DaRockwilder]

Actually, Semi's have to meet emissions standards as well.

http://ohe.cat.com/cda/layout?m=115237&x=7

My other ride is a C500 Kenworth. :D