Does modifying the exhaust valve affect the car?

[Dana]

Modifying the exhaust valve does not affect the car. Introduction to modifying the exhaust valve: The modification of the exhaust pipe involves adjusting the level of exhaust backpressure, which refers to the resistance inside the exhaust pipe. The magnitude of resistance is closely related to the design angle of the header, the diameter of the mid and tail pipes/catalytic converter size, the overall length and bending angle, and the circuit of the rear muffler. Additional information on modifying the exhaust valve: The principle of this system is to install a variable valve inside the exhaust pipe. When the engine speed is low, the valve closes, allowing the exhaust gases to exit through a smaller diameter section or a single pipe. This maintains the backpressure inside the exhaust pipe, preventing the loss of low-speed torque. At high speeds, the valve opens, and the exhaust gases pass directly through a larger diameter section or dual pipes, providing more channels and exits for the exhaust gases. This reduces the backpressure inside the exhaust pipe, resulting in better performance in terms of horsepower continuity.