How does the IS 350 Sound with exhaust?

[S54toIS350]

I really want to get an exhaust on my car, but I'm afraid it is going to sound like a rice rocket. Does the engine for the IS 350 sound anything like the G35/350Z's? If it does then its okay.

Anyone have any sound bits of different muffler systems? What are the expected/proven horsepower gains (if any) from exhaust upgrade?

[G35TOIS350]

if you find an exhaust that makes the IS sound like my prev G coupe LET ME KNOW! lol was the best sounding V6 I've ever heard/owned. thats my only complaint on the IS. too quiet of an exhaust note.

[jcreech]

http://www.youtube.com/watch?v=fpN20ExVIh8&search=is350

this is the jap version