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2015 Yamaha FJR1300, 3900 miles. Testing the sound level of the stock mufflers vs Delkevic 13 inch Tri Oval mufflers with baffles in then baffles out. Includes 5 idle test videos with the Samsung S22+ and 2 idle tests with decibel results from my Lonvox sound level meter. 6 ride test videos filmed with stationary Sony FDR-AX53 HD camcorder. And finally, 9 riding test videos with Insta360 camera and external microphone clipped to the license plate frame. Hope you enjoy this video and find it informing. Thanks for watching @JS Project Wild