restlessnight wrote:改管不是已經違法了?(恕刪) 排氣管是可以改裝的,但若是噪音值超過標準,另有規定。https://ptmx5.pixnet.net/blog/post/228281321-%E6%A9%9F%E8%BB%8A%E5%90%88%E6%B3%95%E6%94%B9%E8%A3%9D%E8%87%AA%E4%BF%9D%E6%94%BB%E7%95%A5