Chevrolet Repair: Catalatic Converter, exhaust gasses, cat converter

Question
How long does it take to put one on and what cause this to miss up?

Answer
Hi Thea... the cat converter turns exhaust gasses into H2o (water)...converter being plugged up is caused by poor gades of gas...and poor running engines... they usually don't take long to change, depending on the car it's on...most you can do in an hour...hope this helps