Just a quick bump on this as I have also been looking at sound improvement. Recently got my hands on a 2022 SQ7 TFSI and most certainly agree the sound is seriously muted on the new ones. I have been looking at several options so far. The active valve controller by Cete has been fitted by them on a SQ8 with no major sound improvement. It appears both cars share the same exhaust system. It seems the gap between valves open and close are almost identical so not worth the £'s for this. It is my preferred option instead of sound systems being pumped through speakers. I was hoping to get nicer rumble on low revs but it looks difficult to achieve without a major mod. The other option would be the active sound systems from Kufatec or Cete but as said, I am very much against fake sound.
Unless I am terribly mistaken, the 2017 SQ7 is pre opf/gpf times and so you getting pure sound out of it as opposed to the having the dreaded filters killing the experience of owning a machine like ours...
I had someone do a backbox and resonator mod on my previous RSQ3 which improved the sound so I have booked my SQ7 so he can work his magic again on this one. If this does not work, I will have no other option but to consider a custom exhaust/catback exhaust system.
Have you or anybody else got anywhere with squeezing more sound out of the SQ7?
Cheers!
