removing cat

[hayabusa]

hi all i was thinking of removeing the cat on my 97 3.1, just wondering if anyones has any advice on how to do this or more sesousily if it will mess up the car thanks

[bowdenjeffery]

Im pretty sure that it wont hurt your car. Im also pretty sure that its super illegal so dont get caugt... with that out of the way im pretty sure that ive read on here that you can get a high flow cat if you want, and that on the grand am engine the cat dosnt really cause any backflow problems anyway.

[Colin]

i was thinking of removeing the cat on my 97 3.1Why ? your not going to get any big power gains , your low end response is gonna suffer and the exhaust is gonna smell like :shit:

[Martyr]

Most muffler shops won't remove the cat, if they did it wouldn't be worth the $$$ you would spend. If you did it yourself, it wouldn't be worth the time. Plus, the cost of a ticket for not having it is more than a new muffler or highflow cat anyway.

[TA^Guy]

Didn't you just make a post simular to this about striaght pipes?

[ChevelleSSLS6]

it's obd2; the o2 sensor after the cat will tell the pcm that the catalytic efficency is bad, and will set off the SES light

you'll need a o2 sim; available from PFYC. That's fifty bucks right there.

[hayabusa]

yes id did make a simlilair post i want to improve my exhasut but without wasteing money on a new muffler that's will make a loud sound

[Foxy]

You love sleepers and you want a loud car.. ok.

Save up some money and do it right.

Removing a cat is fairly simple.. WRX owers decat the up pipe all the time, but they still have two more cats behind the turbo and can pass a sniffer test with those two. Removing the cat itself is fairly involved (http://webpages.charter.net/baraboo_halls/auto/wrx/up/uppipe_fix.html). Again, it's illegal to do so; the best thing to do would be to get a high-flowing cat.. but people are saying that you won't see much of a different completely catless and catted, so..

[hayabusa]

no i was saying i don't like the loud sound performance mufflers put out i really i think i'm only going to mess with air intake stuff and not the exhaust

[TorquePower]

The cat shouldn't kill backpressure. Only way it'll improve your car is if it's bad, or getting clogged...

[Colin]

i was saying i don't like the loud sound performance mufflers put outNot all performance mufflers are loud , i had dynomax mufflers on my 5.0 and they weren't overly obnoxious ...

[TA^Guy]

Originally posted by hayabusa
no i was saying i don't like the loud sound performance mufflers put out i really i think i'm only going to mess with air intake stuff and not the exhaust
Originally posted by hayabusa
stright pipes
hay i was wondering if anyone has ever put stright pipes on a ga. Or is this just a bad idea cause i was thinking about it
I'm so confused...

[eric99gt]

straight pipes are going to be much louder than any exhaust system. The quitest exhaust system out there for the GA's is probably the BORLA. Look in to that if you want to spend some money.