Bespoke 4 Holes 2 Holes Universal Black Rubber Muffler Car Exhaust Hanger Bushing Insulator Tail Pipe Mount isolator 1. Reduce the height and contact surface between the exhaust pipe and the body 2. Effectively reduce the sound produced by the shaking and shaking of the exhaust pipe 3. Effectively reduce the sound produced by shaking and colliding with the car body or vibration of itself 4. The hanging glue that must be installed on the exhaust pipe if the enclosure is changed These are the problems that all people who have changed the exhaust pipe without changing the hard hanging glue will encounter