Hi I have a Honda Civic 99. Yesterday night it suddenly started making a lot of noise(from the rear). I looked under the car in the morning and see that the exhaust pipe (the portion that comes out of the catalytic converter and goes into the muffler) has broken. Can you give me an idea as to what needs to be done to fix this and how much it will it cost (approx). Should the whole exhaust system have to be replaced or body shops can just weld/attach the broken sections. How safe is it to drive around like this. Can it harm the car engine? Thanks. SG