f3racer

What would happen if I had the program removed and kept the cat? What would happen to the cat if it got too hot?

Sadden

Metal melts at the right temperature.

06MonteSS

yeah, you'd burn up your cat....

if you still have the cat. converter on the car, leave the COT on!

Sadden

Might even burn your car to the ground.

hazards280

In the words of Jeremy Clarkson "On that bombshell, GOODNIGHT!"

All in all, I would leave it on

JDMC5

iTrader: (3)

I disagree, the COT can be very over-invasive. I've removed it from many many vehicles and not a single one has had a failed cat as a result.

Sadden

Its a safety feature on your vehicle.
It may be over invasive but its there to protect not only you but your investment.
Removing it without removing the threat is NOT A GOOD IDEA.

JDMC5

iTrader: (3)

.......and I disagree. My vette use to kick COT in mid-way through 2nd gear constantly. I disabled it and never had a problem.

My grand prix had COT disabled for 3 years with zero problems and exhaust temps tend to get very high. I recently pulled the cat to put headers on and the cat still looked brand new.

Not to mention a long list of cars I've tuned that have had zero problems.

JDMC5

iTrader: (3)

Ok so I would desensitize it at the very least.

LS1 Racing

iTrader: (15)

Why not just spend $100 on a catless DP and not worry about it?

f3racer

Cuz I'm a cheap bastard

hazards280

Legit Reason

Sadden

We all know what happens as exhaust passes through the cat , hydrocarbons in our exhaust gasses react with the cat to make cleaner emissions blah blah. My point is that with age cats plug off. That feature is there to prevent the vehicle from lighting up due to a plugged cat.

Desensitizing it is one thing.
But i wouldn't go so far as to disable it without removing the cat first.
At least in your case you had a convenient time to inspect the cat.
At least your honest about it:p

LS1 Racing

iTrader: (15)

You can afford a tune, but not a catless DP?

In my experience, cheap usually costs more in the long run, but hey, more power to you!

hazards280

I wish LS1 Tech, had a "like" button like on Facebook. In this case +1

f3racer

it was a joke. i dont have a tune either. it was just a question. which leads to my next. why cant i just cut the cat out and weld in a piece of pipe? and a 3rd, where would i find a catless dp?

LS1 Racing

iTrader: (15)

Ahh...Your sarcasm didn't show through in the posting. My apologies.

In short, yes you can cut it out and replace with a straight pipe. But since there are plenty of down pipes available (Hogan, etc.), it's probably a cleaner and maybe even a cheaper way to go than to hack the factory one. It's pretty easy to swap out for the stock one, if you need to for any reason, where if you weld in a test pipe, you'll have to weld in a cat again.

Also, you'll need a tune to get rid of the code thrown by the post-cat O2 sensor.

f3racer

i was concidering using the overkill tune.

f3racer

ok. i just read what the site said.

JDMC5

iTrader: (3)

now this I agree with.