Is it illegal to modify a single exhaust into a dual exhaust?
1 Answers
Modifying a single exhaust pipe into a dual exhaust pipe cannot be done privately, as unauthorized vehicle modifications are illegal and require submitting an application to the vehicle management office. According to the "Motor Vehicle Registration Regulations": Article 9 states that applications to change the body color of a motor vehicle or replace the body or frame must fill out the "Motor Vehicle Modification Registration Application Form" and submit the required legal documents and certificates. Below are the relevant requirements for vehicle modifications: 1. Modification process: The vehicle management office shall decide whether to approve or reject the modification within one day of receiving the application. For approved modifications, the vehicle owner must present the modified vehicle for inspection at the vehicle management office within ten days after the modification. The vehicle management office shall confirm the vehicle within one day of receiving the application, retrieve the original vehicle license, and reissue a new one. For modifications involving the replacement of the body or frame, the vehicle identification number (frame number) imprint must be verified, and the origin certificate of the body or frame must be retained. 2. Modifications requiring registration: Registered motor vehicles must apply for modification registration with the local vehicle management office in the following cases: changing the body color; replacing the engine; replacing the body or frame; or replacing the entire vehicle due to quality issues.
