<prompt> Human: My current car is a 1999 Toyota Avalon that I got for free from a friend of my dads. Ive had it for about 3 years and it has 262k miles on it. Theres a problem with the exhaust system that will cost 2k to fix. So far, I havent had a ton of issues with this car. However, I feel like spending another 2k on it given the age and mileage isnt worth it. My questions are:- am I better off just paying 2k for this car or getting another used one? - should I buy from a private seller or a dealership?Assistant: Specifics on the exhaust issue? Have you taken it in for a second repair estimate?x200B;The only repair I can imagine costing 2k would be a completly new oem exhaust. Human: The mechanic said the catalytic converter needs to be replaced, and that the exhaust system is all welded together as one piece  <response>: Buy aftermarket cat, have someone cut and weld it in. Should only cost 400 TOTAL. 