中至尾排气喉，R77D新款双咀碳纤维设计。

R77D 3/4 slip-on exhaust system. New design double exit.

youdao

同时，假如要改动汽车的排气系统，要选用静音喉，切忌选用响喉。

In the meantime, if want to change the automobile exhaust system, should choose mute larynx, avoid by all means is choose ring.

youdao

同时，假如要改动汽车的排气系统，要选用静音喉，切忌选用响喉。

In the meantime, if want to change the automobile exhaust system, should choose mute larynx, avoid by all means is choose ring.

youdao