Here is that lousy video I promised. I'm hand-holding an iPhone 6 against the steering while while trying to turn onto a road and shift. Still, with headphones, you get a rough idea of how it sounds. I need to get on a backcountry road to really show off the intake. It gets very loud and aggressive, but it takes a lot of throttle to get to the sweet spot. I keep running out of road around my house.
Need bassy headphones to get fairly accurate idea of how it sounds.
Lousy night time video of Gruppe-M intake sound under moderate throttle.
Salty