When selecting an anti-theft device for a catalytic converter, consider the following factors:
1. Compatibility: Ensure the device is compatible with your vehicle's make and model. 2. Installation: Some devices require professional installation, while others can be installed by the vehicle owner. 3. Cost: Prices vary widely, so consider your budget while ensuring the device offers adequate protection. 4. Reviews: Check reviews and ratings to gauge the effectiveness and reliability of the device.