ok this was the best i could do. just a few mins of driving round the block, sorry it's a bit windy sounding.
hard to really show off in 50km/h streets, with kids playing soccer at the park and stuff.
just me pulling out of my set of units, driving round a few streets, then reversing back into the driveway, then a quick rev at 1k rpm then another from 1.5k to 3kish in neutral then turned off. ~4 mins.
it's pretty quiet unless under acceleration, hope this helps someone.
https://www.youtube.com/watch?v=3PrvspBHu24
edit: i think my mic doesn't quite do it justice, it's a bit of a deeper note in person, but still nothing like an 8.