How do you permanently disable speed limiter on 2000 Seville?

To permanently disable the speed limiter on a 2000 Cadillac Seville, you would typically need to reprogram the vehicle's engine control module (ECM) using specialized diagnostic equipment or software. This process often requires access to a dealership or a professional automotive technician with the necessary tools. Alternatively, you might consider installing a performance chip that overrides the factory settings. However, be aware that modifying speed limiters can affect vehicle safety and legality.