The utility model relates to the related technical field of automobile exhaust, in particular to an end cover for automobile exhaust
noise reduction, which comprises a
noise reduction bag main body, an air outlet
pipe is communicated with the side wall of one side of the
noise reduction bag main body, an end cover piece is arranged on one side of the air outlet
pipe, which is opposite to the
noise reduction bag main body, and a plurality of clamping groove blocks are fixedly connected with the outer side wall of the end cover piece. And a clamping groove hole is formed in the clamping groove block. According to the air outlet
pipe, the rotating pin is rotated by using the rotating structural part, so that the positions of the clamping plate and the clamping groove hole deviate, then the moving component is used for driving the rotating pin to linearly move in the direction of the central axis of the air outlet pipe, so that the elastic
cushion on the clamping plate is attached to the clamping groove block, and in the process, the elastic
cushion is tightly attached to the clamping groove block. The fitting tightness degree between the end cover piece and the air outlet pipe is adjusted according to rotation of the rotating threaded ring, and the position relation of the rotating pin can be freely adjusted.