will my car run without the cat????

Asked by Aug 21, 2009 at 11:05 AM about the 1999 Volvo S70 T5 Turbo

Question type: Car Customization

the cat is pluged its about 1,500 part. Will my car run without it?

6 Answers


yes but it gonna be loud and won't pass e-test if your in ontario, also if you replace it with a pipe to reduce the loudness, if there's an exaust leak the car might not pass safety


Yes, but you are going to have a check engine light. This is also illegal in most places... don't get caught without one if it is.

1 of 1 people found this helpful.

you can also gut it out,but like said in above post dont get cought doping it,cut it off a 10 lb hammer and a long screwdriver will do the trick then weild it back on.


Autozone sells universal style catalytic converters for $200. You may need to modify the system to make it work but you will not throw codes and it will be legal.


Catless exhaust system from OBX is less than $400. You will just need to install a spacer on the o2 sensor, or tie the o2 sensor to the underside of the car to get rid of the check engine light.

3 of 3 people found this helpful.

do you have to do a smog test where you live? if not gut it and put it back in. it will throw a code but rear o2 sensors dont do jack except tell you that your cat is bad.

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