If I could get the blasted vid to work in Photobucket.....
http://s641.photobucket.com/user/mat...0eeff.mp4.html
As you can hear, it's very mild.....almost stock-sounding. I'm kinda astounded by it. This is WOT's "Race" cam, boys and girls.
http://wot-tech.com/shop/gm-60v6/rac.../prod_244.html
Granted, it's still in open loop and idling at about 1000rpm, but still......
I guess that's what nearly 11:1 compression will do for you.