Your right about videos online, however, after removing the Res from my 300 it is much much louder, infact I thought it was to much at first, soon started to love it, drone is a but shitty though!Getting this done next week, direct from Zaustworx for MY19 290. To all those that have had this done already, has it become noticeably louder, as alot of the videos sound the same before and after?