Main lamp and muffler are one of the component parts of which should be there on motor vehicles. A lamp is used to produce the light exposure in the dark condition, then muffler serves as the gas disposal and also as silencer a sound from machine. vehicle users who use the main lamp below the minimum threshold of government regulations cause an accident due to the production the light exposure is less bright, while vehicle users who using a muffler that has the decibel number or dB that exceed the threshold caused environmental pollution and disturbing on hearing. So the aim of the research is to learn the level of the light exposure produced from the main of LED lamp 6 side and the standard of main lamp, and also to find out the sound emission level of Japstyle Racing muffler and standard muffler. The research of the light exposure used a lux meters, while the sound emission used a Sound Level Meter. The light exposure has some variations in this research, the future variations using a measuring distance of 3 meters, 4 meters, 5 meters, 10 meters, 15 meters, and then a multiple of 5 meters to reach the final limit of 100 meters. Whereas the sound emission is using transmission 3 with a speed of 50km/hour. The research of the light exposure conducted at the night and the research site located on Lingkar Selatan road, Bantul. Meanwhile, the sound emission conducted during the day, and research sites located around the Sultan Agung Stadium. The results of the research has been carried out, the study of light exposure here is the using the main LED lamp which the produced by the light is brighter than the standard lamp. Mainwhile, the result of sound emission of Racing Japstyle muffler here is lower due to the addition of glasswool variations which caused the dB value decreases and if we use the main LED lamp, it is highly recommended to use -5º reflector angle , because the reflector angle is between 0º, -5º and +5º. The reflector angles of -5º has a lower light exposure value.