C-15 550 Cat turbo whistle with the windows up

Here is the Turbo whistle pulling a yacht with my work truck 67 mph, I-90 heading towards Seattle, 2002 T800 Kenworth with a 550 C-15 Cat. This is with the windows rolled up!!!!!! Mind you, I'm only about 65k with truck, trailer and yacht, can you imagine 190k with an excavator or dozer on!!!! OUCH!!!!

Видео C-15 550 Cat turbo whistle with the windows up канала poldrag08