* Excessive Noise: The main function of a muffler is to dampen the sound of the engine. Without it, your car will be extremely loud, violating noise ordinances and potentially leading to fines or tickets.
* Safety Hazards: While unlikely, a missing muffler could pose a slight safety hazard due to increased exhaust fumes. The exhaust fumes might be directed differently and could potentially enter the passenger compartment, especially if there's a leak in the exhaust system further up.
* Environmental Concerns: A missing muffler contributes to increased noise pollution, which negatively impacts the environment and the well-being of those around you.
In short, you *can* drive, but you *shouldn't*. Get it repaired as soon as possible.
