On a 2000 Chevy Malibu, the catalytic converter is typically located in the exhaust system
underneath the vehicle, near the engine and before the muffler. It's usually close to the transmission but the exact position can vary slightly depending on the engine configuration. You'll likely find it connected to the exhaust manifold or downpipe, and leading into the rest of the exhaust system.
Because it's underneath the car, you'll need to get under the vehicle to locate it. Be aware that the catalytic converter gets very hot when the engine is running, so don't touch it.
