The Effect Of The Addition of Copper DB Killer On Yamaha Vixion 150cc Motorcycle on Exhaust Emissions

The addition of racing exhaust to a vehicle will greatly affect the quality emissions. Racing exhausts that use FreeFlow system which throws remaining combustion gases out immediately without any deflection and catalyst in exhaust. DB Killer uses nest-shaped copper material, besides reducing noise it also reduces excessive emissions material is easy obtain, inexpensive, has simple manufacturing process. advantage using nest model plate significantly compared not Killer. installed at end silencer tested different RPMs 3500, 4500 5500. Tested gas analyzer obtain CO, HC CO2 values ​​for Obtaining results much better produces less noise. result lower emission value because there made can withstand hollow design.