Mike,
Truly stunning scenery and makes me very jealous as here in Florida we have little to speak of in the way of hills and forget mountains. We do have a couple of very nice beach front roads but nothing as nice as that highway. Personally I doubt I could keep to the speed limits in that environment. That road begs to be driven fast. As for the sound my first thought is its certainly no where near motorcycle level which in this state they allow to be extremely loud as a safety issue which would be my first point to the cop should I ever get pulled over. The motorcycle crowds state its better to be seen (lights must be on at all times) & heard by others since they are so small so many officers never issue citations. The 40 would certainly qualify for that in my mind since the car is: A) very low and B) not that big overall.
I agree, I think the cop just wanted to check out the car. Lets face it many cops are car lovers too and seeing your "whip" is not something he (or she) will see everyday. The two times I've been pulled over in mine thats all they said to me..."what kind of car is this?" And, oh yeah, you need to slow down a bit. Right you are officer!
Thanks for posting the video.
BTW, do you run with the exhaust heat shield sitting over the megas or without it?