Many years ago, when I had a Vantage, the first thing I did upon picking it up was to sort the exhaust flaps out, so they stayed open all the time. In the Aston, this was really easy, as all you had to do was locate and pull out 'Fuse 22'! It sounded much better and the fuse never went back in.
I did a bit of internet digging on how to do this on the LC and while it wasn't quite so simple, it was still pretty straight-forward. It has made a reasonable difference and i'm now much more pleased with the sound when i'm just pootling about, which lets face it, on our roads is most of the time.
I'm curious, is this something that most owners have done? on the Aston, I would say 99% of owners pulled fuse 22.
What's the next step up if I wanted more theatre / noise from the LC? The only option I could see was for a complete 5K+ new exhaust system to go on, and i'm not sure I can justify that, or indeed just how much difference it will make.