* Emissions: Catalytic converters are crucial for reducing harmful emissions. Gutting them will make your car fail emissions testing (if required in your area) and significantly contribute to air pollution. This could result in hefty fines.
* Engine Damage: The backpressure created by the catalytic converters is necessary for proper engine function. Removing them dramatically alters the exhaust flow, potentially leading to engine damage over time. This could manifest as reduced power, overheating, or even catastrophic failure. The oxygen sensors might also provide incorrect readings leading to a rich or lean condition harming the engine.
* Oxygen Sensor Issues: The oxygen sensors in your exhaust system rely on the catalytic converters' function to accurately measure the air/fuel ratio. Removing them will disrupt this process and cause the engine's computer to run inefficiently, potentially leading to poor fuel economy and performance.
* Smell: The exhaust will smell significantly worse, and you'll be breathing in more harmful gases.
* Legality: In most places, gutting catalytic converters is illegal. You could face significant fines or even legal action.
In short, while it might seem like a quick fix for a perceived exhaust problem, gutting your catalytic converters will cause more harm than good to your car and the environment. If you're having exhaust issues, diagnose the underlying problem correctly and repair it appropriately. Replacing a failing catalytic converter is expensive, but far less expensive than the potential engine repair costs down the road.
