It installed in engine exhaust muffler differences between the exhaust pipe and tube, the entire exhaust system was flexible connectivity. played thus reducing the vibration and exhaust muffler system to facilitate the installation and extended life span. It is mainly for light trucks, mini trucks and buses. Silencer for better results, which can bellows expansion joints, or internal network presentation.

    Three structures were as follows : A) : The general-card set nets + B + Bellows) Net : Bellows abroad sets + + + network card sets C sets) extendable models : Bellows foreign nets + + + card sets the guise of materials : corrugated pipe joints (SUS304); nets (304) are; Expander (SUS304); Card sets (aluminized steel)