Does modifying an Audi A4 with an S4 exhaust affect power?

1 Answers
Claudia
07/30/25 3:44am
Audi A4 modified with an S4 exhaust will affect power. The main goal of exhaust pipe modification is to enhance power performance. Unauthorized changes to vehicle parameters constitute illegal modification: Modifications such as altering vehicle tires and rims, adding spoilers, lights, exhaust pipes, etc., are all considered illegal modifications. These must be restored to their original condition to pass inspection, and penalties such as fines and license suspension may also be imposed. Legal basis: According to Article 97 of the "Road Traffic Safety Law of the People's Republic of China": No unit or individual may assemble a motor vehicle or alter the registered structure, construction, or characteristics of a motor vehicle without authorization.
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