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mdix
06-15-2009, 04:13 AM
I知 taking out the catalytic converter on my 95 Celica. I was wondering if that will cause any o2 sensor problems. I looked at the piping and found that there where 2 sensors. The first one is right under the manifold and the second right before the first cat or what looked to be a small cat but I知 not sure. I have heard that you can some how loop the sensor but I知 not sure how to do that or if it is necessary considering that the sensor is before what I plain on taking out. Any help would be great. Thanks

Grot
06-15-2009, 04:14 AM
yes, and i *Believe* that your cat is inside your Exaust Mani. what your looking at under the car is the resonator.

mdix
06-15-2009, 04:18 AM
what do the resonators do?

Grot
06-15-2009, 04:19 AM
quiet down the exaust and make it less rattly/ricey

mdix
06-15-2009, 04:19 AM
so will cutting them out help with power at all?

Grot
06-15-2009, 04:24 AM
not really, even removing a cat on a stock engine wont do much if anything.

mdix
06-15-2009, 04:26 AM
but if i do take them out and they are after the o2 sensors i don't have to worry about my engine light coming on right?

Grot
06-15-2009, 04:37 AM
Correct

Galcobar
06-15-2009, 10:25 AM
Put this in perspective: before you get into your car, do you ensure your bladder is empty and there is no change in your pockets? If not, then don't bother removing the catalytic converter or the resonator. Air pollution and noise pollution are bad things, and the reduction in enjoyment of clean air and clear music far outweighs the microscopic improvement in exhaust efficiency.

You'd see and feel much more results by improving the quality of your tires. Actually, scratch that, short of the cat being plugged (very rare) you wouldn't feel any results from removing those pieces.