Increasing the noise on a V12 Vantage?

[AstonExige]

So on my V8V just changing to 200 cell cats made a whole world of difference. It is perfect, steady cruise no difference really, on the throttle and it is sounds fantastic.

So what ways can you get similar with the V12? I've been reliably informed replacing the secondary cat with decats gets a good result. Anyone done this? Or done different?