Which statement is true regarding replacement converters?

Replacement converters must be the same type as the original to ensure proper function and compliance with vehicle emissions standards. The type of converter—whether it is a catalytic converter designed for a specific vehicle model and engine configuration—plays a critical role in maintaining the necessary chemical reactions to reduce harmful emissions. When replacing a converter, using one that matches the specifications of the original ensures that the vehicle will perform correctly and meet the required environmental regulations.

Using a converter that does not match the type of the original could lead to reduced efficiency in exhaust treatment, potentially causing the vehicle to fail emissions testing or not meet local regulatory requirements. Additionally, mismatched converters may not fit properly or could cause issues with the vehicle's exhaust system, including poor performance and possible damage to other components.

In contrast to this, the other options present misleading associations. Not all replacement converters can be considered equal, as they differ by make, model, and specific emission requirements of the vehicle. Hence, it is essential that any replacement is consistent with the type specified for the original equipment to ensure compliance and optimal performance.