Dp install went awesome! Still doesn't drone to me. The torque increase is nice and it makes the q300 sound like a beast at wot, not too much louder cruising to be noticeable. Drove on the highway for 45 minutes with seats down and had no trunk rattles. I've taken the cover off on the lid though when I wrapped the trunk trim with di noc. Maybe I just attached it better then it was originally? I think the hatch drone has to do with the shape of the hatch and the fact it only usually has one muffler? Not sure though.