Here's my pick for best sounding car under $50K and it does have an aftermarket exhaust:
[media]http://www.youtube.com/watch?v=Nj5mo9GAZyc [/media]

(Fast forward to 1:35 in the vide for the good stuff).

[media]http://www.youtube.com/watch?v=lNhG4K-Wnoo [/media]

(Fast forward to 3:35 in the vide for the good stuff)

What's your pick?

 

I love the sound of almost any horizontally-opposed engine, so the Boxster/Cayman would probably be my pick, though they're certainly skirting the $50,000 boundary a bit. That said, when you're driving a car, there's nothing quite like hearing that engine right behind you in a mid-engine car, making the Cayman or Boxster all that much better. The Elise I once drove was much the same way, the sound and the effect from it being right behind you was/is f'ing amazing.

 

I LOVE that the sound of that cayman s, even before the borla it sounds nice, but that borla made it fantastic

 

G35 coupe.
or FX35/45

 

[media]http://www.youtube.com/watch?v=m92wPYnW2LA [/media]
[media]http://www.youtube.com/watch?v=kGnGQSHJ11M [/media]&feature=channel

 

03/04 cobra, gt500's might fall in that price range too.

 

[media]http://www.youtube.com/watch?v=jMgUXR6bmek [/media]

 

[media]http://www.youtube.com/watch?v=aR_kz8l9CjE [/media]

 

I'm a little partial to my LS3 C6:

[media]http://www.youtube.com/watch?v=AMecChZGLiQ [/media]

Vid was a spoof on how much faster it is than my Yukon. You can also get a new C6 with all my mods for easily less than $50k.

 

R32