Abstract
Indonesia is one of the countries that has experienced a significant increase in the number of motorcycle vehicles, especially the Yamaha Vixion motorcycle, which is a sport-type motorcycle, a motorized vehicle which causes noise pollution arising from excessive noise levels. The aim of the study was to find out the results of the analysis of the noise level produced by motorbikes between standard and racing exhausts using the Intact-Group Comparison experimental research method. Experimental group (treated) and control group (no treatment). Population of all types of motor vehicle exhaust, sample 2 types of exhaust, namely standard and racing. the independent variable is the use of standard exhaust and racing exhaust on motorbikes. The dependent variable is noise level. The HC compound on the standard exhaust compared to the Racing R9 exhaust can significantly reduce HC exhaust emissions. The standard exhaust CO compound is better than racing exhaust. So the noise level and exhaust emissions of racing exhausts are higher than standard exhausts. So that racing exhaust is more dangerous if it is used frequently because it contains a noise level that is too high.
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