Lambo Exhaust Note

Hi Im new here and this is my first post. I live in the UK and my favourite car in all the world is the Diablo SE30 in rosso red. At this present moment I drive a Ferrari 512tr and am on the lookout to buy one of these Lamborghinis for a second car.
However my dilema is that I am unhappy with the sound of my 512. It sounds awesome when I floor it whilst driving on the road, but naff when revving it whilst the car is stationary. I want to get a new exhaust and was wondering if anyone could help me locate a good one. The sort of sound I want to achieve is the Lambo Countach from Cannonball Run (violently loud with a deep bass rumble to it). The high pitched Kawasaki motorbike and modern Formula 1 note from some exhausts is definitely not for me. Ive heard Tubi and Kriessieg samples and wasn't impressed by what I heard. Ive also heard a Larini sample and quite liked it. Are there any other options?

what about borla?

My mate got a twin exhaust for his 20 year old carola, and you can't have a conversation in the car it's that loud. It's the most, and worst, annoying, single noted drone noise in the world. A highway trip will make you go crazy.

Go here and ask: http://ferrarichat.com/forum/forumdisplay.php?f=66

Buy a Countach, then you have the real thing !!