No Follow. Whether raw or cooked, food can be chock-full of dangerous bacteria long before you can smell it. Perishable food (like chicken and other meats) should be tossed if left out at room temperature more than two hours (much less if in a warm room).
A catalytic converter is a simple device that uses basic redox reactions to reduce the pollutants a car makes. It converts around 98% of the harmful fumes produced by a car engine into less harmful gases. It is composed of a metal housing with a ceramic honeycomb-like interior with insulating layers.
What it is, is an exhaust system without a catalytic converter. What it does is allow the exhaust to flow more freely because the cat isn't there to clean the exhaust(which slows the exhaust down). catalytic converter or cat is a component in an exhaust system that essentially superheats the unburned gases to prevent them from exiting the car and making their way into the atmospere...strictly an emissions regulator.