2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

cat or no cat

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Old Nov 8, 2006 | 10:02 PM
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idontlikeslow's Avatar
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From: jax,florida
cat or no cat

that is the question


well did you use hptuners to disable the 02 sensor so you could run catless?

just wondering what people did with their exhaust personally i would like to run catless
but you know how that OBII wiring/ecu is sigh
i don't have hptuners atm but i know i could use a 02 sensor relay(can't remember the right word for it) i've used it before wasn't too bad

just trying to get some insight

thanks
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Old Nov 8, 2006 | 10:06 PM
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i took the cat out without hptuners when we were using maf-t's

it will throw a code thats all
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Old Nov 8, 2006 | 10:12 PM
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From: jax,florida
is it possible to keep from throwing the engine code??? or to clear it?
doesn't having the code thrown effect overall performance?
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Old Nov 8, 2006 | 10:13 PM
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Dude, run a cat. You will not pass emissions without it plus if you don't have HPTuners you will have a CEL all the time. A catless exhaust usually sounds raspy unless there are a good amount of supporting mods. Also in reality not having a cat is worth 2-3hp at the most. Running a cat also helps keep some low end torque.
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Old Nov 8, 2006 | 10:13 PM
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NOO dont take it out, your car will be soo luod man, youll hate it after.
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Old Nov 8, 2006 | 10:26 PM
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From: jax,florida
i could careless how loud it is, i love to scare old people
i used to have a 1997 jeep grand cherokee LTD with the 318 motor i had a short ram intake on it 2.75" exhaust straight piped from each header with no cats, i loved it
it was so much fun to drive, i care more about performance and deep scarey sound than anything else
also it had that 02 simulator in place of the cat lol there we go i remembered the name
i rather have the 2-10hp gain than to keep on there or would a hi-flow cat be just as good i just don't want anything that has that honeycomb ****

also i live in florida, there's no emissions test in the state of florida, florida voted that **** out of our state about 15 or so years ago
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Old Nov 8, 2006 | 10:28 PM
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From: York, PA
http://www.youtube.com/watch?v=xZ3lYHiEKvM


This is a sound clip of my car with xtc downpipe with no cat and gmpp catback!
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Old Nov 8, 2006 | 10:31 PM
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Just get a highflow cat, easiest thing to do
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Old Nov 8, 2006 | 11:04 PM
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Another benefit of not runing a cat is, you can run race gas.
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Old Nov 8, 2006 | 11:06 PM
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Originally Posted by rallyyellow06
Just get a highflow cat, easiest thing to do
x2
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Old Nov 8, 2006 | 11:50 PM
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From: jax,florida
i absolutly love the way bamfnss car sounds!!!

i think i'm going catless

anyone here in florida got hpt so i could get the 2nd 02 sensor disabled when i buy my car???
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Old Nov 9, 2006 | 12:24 AM
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If you remove your cat, and have proper sound deadening then it shouldn't have rasp. It will be really loud though, nothing you can do about that
My exhaust has no cat and good sound dampening so it has no rasp but is still loud as FU**! Click the link in my sig to hear it.
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Old Nov 9, 2006 | 12:25 AM
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Originally Posted by Shortbus
Another benefit of not runing a cat is, you can run race gas.
leaded race gas will destroy your o2 sensors fast fyi
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Old Nov 9, 2006 | 12:32 AM
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From: Central NY
Originally Posted by Blown 4-banger
If you remove your cat, and have proper sound deadening then it shouldn't have rasp. It will be really loud though, nothing you can do about that
My exhaust has no cat and good sound dampening so it has no rasp but is still loud as FU**! Click the link in my sig to hear it.
I ******* love the sound of your car man!

More videos!
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Old Nov 9, 2006 | 12:57 AM
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Originally Posted by Blown 4-banger
If you remove your cat, and have proper sound deadening then it shouldn't have rasp. It will be really loud though, nothing you can do about that
My exhaust has no cat and good sound dampening so it has no rasp but is still loud as FU**! Click the link in my sig to hear it.
Great sound!!! Really want to take out the cat now!!!

Can you get any pics of under the car?
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Old Nov 9, 2006 | 01:09 AM
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It depends on the the muffler you have. I have the stock resonator and a magnaflow muffler and it sounds awesome without the cat.

HPTuner got rid of the CEL as well.
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Old Nov 9, 2006 | 01:12 AM
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Originally Posted by Matty
It depends on the the muffler you have. I have the stock resonator and a magnaflow muffler and it sounds awesome without the cat.

HPTuner got rid of the CEL as well.
He said it, resonator = no or very little rasp
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Old Nov 9, 2006 | 01:23 AM
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I don't have a cat, and the sound doesn't bother me at all. It doesn't sound that bad.
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Old Nov 9, 2006 | 01:25 AM
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Originally Posted by Blown 4-banger
He said it, resonator = no or very little rasp
Also a deeper tone!!
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Old Nov 9, 2006 | 01:45 AM
  #20  
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From: Mesa, AZ
Originally Posted by Killa SS
Also a deeper tone!!
3" exhaust also helps that
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Old Nov 10, 2006 | 10:21 PM
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From: Alexandria Twp. NJ
Does anyone know the penalty for not having a cat on your car in NJ?
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Old Nov 10, 2006 | 10:25 PM
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From: Maple Ridge, BC, Canada
I have 3 cats.
I love them all.
Oh, different type of cat?
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Old Nov 10, 2006 | 10:25 PM
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From: RTP, NC
Just run a cat a pollute a little bit less ok

You might get a few extra ponies that you won't be able to notice..
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Old Nov 10, 2006 | 10:32 PM
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Bamfnss, very nice vid. Sounds great with the set up you have. I would go catless also. Besides, it saves cash not having to buy a high flow cat. I'll just a lick and stick for inspection from my friends garage. Only prob is if I have any issues taking it to the dealer without a cat, lol.
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Old Nov 10, 2006 | 10:32 PM
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From: Matteson, Illinois
Originally Posted by rallyyellow06
Just get a highflow cat, easiest thing to do
X3!

Emissions are important. I need to pass them. =p
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