HJS app for iPhone and iPad 4.2 ( 7792 ratings ) Utilities Developer: 首辰 乔 Free Current version: 1.0, last update: 1 year ago First release : 17 Jun 2020 App size: 16.27 Mb 连接并控制排气设备,对排气设备控制阀门、显示车速、转速等