Car Vent Performance

In fact, the semi-through pipe is the same as the semi-return pressure pipe, but the exhaust diameter is larger than the half back pressure pipe: the starting torque is lower than the half return pressure, but the mid-to-high speed torque is larger. Connect the variable exhaust system to the car exhaust hole , Added a side tube.

When one pipe is fully opened, the other pipe is completely closed. Compared with the single-valve variable exhaust, it has a better sound effect. When the opening is 1/3, the sound effect is more single-valve Qi is basically the same. The sound can be switched on and off, and the exhaust can change the size of the sound. The exhaust is controlled by the valve to achieve the best sound and performance.