BlackTA519

My SES light came on and i had my car diagonsed at Pontiac and they said I have a bad catalytic converter. I was planning on driving to the beach in a few days and was wondering what the effects were of driving with a bad catalytic converter. Is this something that needs to be fixed immediately or can it wait? Thanks

2001NBMZ28

P0420 or P0430? Probably OK unless you can hear it rattling/coming apart. They're going to replace it free since you're under 80K - right?

2000TransAmWS6

iTrader: (12)

if its clogged or coming apart it will cause you to get bad gas milage and lack of power.

jmm98LS1

iTrader: (28)

If it's clogged, you'll notice poor performance and probably poor fuel economy but you will not hurt anything. Cats have an 8 yr/80k? mile warranty if I remember right....they have to replace it for free if you're under 80k miles (I think it's 80k, might be higher).

EDIT: 2000TransAmWS6 beat me to it!!

GR33N GoblinM6

iTrader: (14)

dont forget.. if its clogged.. you're cat will glow red.. and your engine temps will increase because of the exhaust trying to escape.. change it before you drive it

BlackTA519

My car has 94,000 miles. I guess now would be a good time to upgrade to hi-flow cats or no cats at all. If I were to upgrade to hi-flow cats, would I need anything else besides the cats? What about going to no cats? I have the loudmouth exhaust. Thanks

GR33N GoblinM6

iTrader: (14)

good replacements are Carsound (Magnaflow is the parent company) part #94106.. there is a guy on ebay that sells them for 55$ each.. shipped...

KrazyDan

my car is throwing P0430. It made the 338 hp with that code

BlackTA519

I'm planning on getting a pair of the random tech hi flow cats. are these cats an easy, direct replacement for the stock cats? or does alot of work need to be done to replace them? Also, do i need anything besides the cats?

tylerz28ss

could it not be faulty readings on the rear O2's?

LS1Aggie09

iTrader: (25)

umm...bad cat=no biggie...mine was driven for almost 10k miles with a bad cat cause the previous owner was an idiot...i still dont get the best gas mileage, but everything seems to be running ok!

2000TransAmWS6

iTrader: (12)

haha, thats pretty cool, said the same thing at the same time.

you're right, i had forgotten about that, a clogged cat WILL make the engine run hotter.

02WS6Bird

iTrader: (2)

take it off, and GUT them easy way to do it car will be louder sound more aggressive etc.

in all reality the only REAL hi-flow cats are Random Tech, and theres are amazing. I ave carsounds with my QTP setup and trust me there really is nothing high flow about them!