I tried to get a video of some exhaust noise through my favorite tunnels on my commute but wind noise kinda ruined it. Also funny the exhaust noise is propped up by the jeep wrangler right behind me who gunned it at the same time I did. Entertaining to listen to in person, video doesnt do it justice!
Here is another video from when I hooked up a mic during an autocross. Different camera with a terrible mounting system though so its a bit jittery. The mic was also too close to the exhaust I think so it didnt come out great either but I like the idea of something closer to that.
My only halfway decent exhaust video: