saab catalytic converter removal model 9-3 2000 turbo

[leezee]

I have saab 9-3 se 2000 with 2.0 turbo engine. Please let me know if catalytic converter removal will flash check engine light, will it affect engine electronics? Both sensors are located before catalytic converter.
thanks

[Ninety5Aero]

Doesn't the 2000 have 2 cats?

[leezee]

I am pretty sure it just one, located right under oil pan, way too close. It cooks oil, which eventually turns into sludge, sludge clogs sump.
My point is to put straight pipe and wrap it with heat radiant tape, plus maybe gain a few hp, run turbo cooler...?
Also, I was thinking about installing lower temperature thermostat, original 195, to 180..

[soccerrplyr]

It has two, a small one at the top where the downpipe connects to the turbo and a larger one by the oil pan. You'll need to trick the ecu o2 signals with a tune if you try to get rid of the cats

[leezee]

ok, what if I leave 1st, and get rid of 2nd one, which is right under the oil pan?

[leezee]

ok, catalytic converter removed, straight pipe put in plus aluminum plate to protect oil pan. so far, after 2 days of driving no check engine light is on. saab has 41000 miles.
here are pictures what I found in oil pan:

[g96nt]

Are you not in the US?

Over here, we have 2, and one is before the oilpan, and I *think* the other is behind the oilpan.

It's safe to say that your coding is different over there, especially if both O2 sensors are before the catcon.

[leezee]

canada.
maybe you right, my saab had two catalytic converters, one is angle shape another under oil pan. never thought that 1st one-angled, small one is a cat..

[BobSabbert]

Originally Posted by leezee

I am pretty sure it just one, located right under oil pan, way too close. It cooks oil, which eventually turns into sludge, sludge clogs sump.
My point is to put straight pipe and wrap it with heat radiant tape, plus maybe gain a few hp, run turbo cooler...?
Also, I was thinking about installing lower temperature thermostat, original 195, to 180..

Wrong solution. Clean your pan, install PCV fix #6, change your oil regularly. A lower temp thermostat likely makes your engine less efficient. It will have little effect on the turbo temp since the turbo sits in the hot exhaust stream. Meanwhile you're polluting the air your kids will need to breathe, but what the heck, screw 'em.

You should be looking at a 3" downpipe with a race cat, a tune, and other mods if you want more HP.

[shook187]

I took out the 2nd cat and I have no check Engine light

[leezee]

let us know a little about your saab: any issues with sludging, how many miles, any special maintenance advice?
by the way, what did you do with 2nd cat, did you sell it to recycling yard?

[leezee]

look at my art...jesus