I noticed quite the difference in exhaust sounds going from my delettdd 16 to the 19 and not quite sure why.. stock turbo, 5", intake, etc.. only thing that would be different is the tune. While the 16 rumbled at idle it turned to a hiss immediately after touching the gas pedal and while driving.. the 19 does not change to a hiss after giving it gas and driving.. appears to rumble all the time and is quite louder in cab. Any of ya'lls 17-19s like that?