LP560 exhaust mod - advice please

[MagnumPI]

I love the sound of my LP560 for the first 45 seconds on cold start, but then as most of you know, the LP560 goes very quiet once the valves/vacuum close. It is the same when the engine is started and you rev it a little, it sounds so flat and dull and not Lamborghini like at all!

I was wondering if anyone has any experience of one of these with the standard exhaust system, and if it made a difference?

http://www.capristoexhaust.com/gallado-lp550-lp560...

I know the exhaust system and valves on the pre LP cars was much different and you can pull the vacuum lines, but Lamborghini have told me (also confirmed by other forum posts I have read) that this will also throw up error codes on the LP560, so not something I want to do.

Any advice greatly appreciated