honestly bro it depends what your going for, if you are just going for sound like you stated then I would recommend going for an axle-back as they are just made for sound and run cheaper then any other exhaust set-up! my personal favourite is the SRT headerback exhaust... its expensive as shit but sounds amazing an gives you 10 more hp to the wheels!

https://www.youtube.com/watch?v=r8DPlxsl9aY ( heres a sound clip )

 

Is the SRT header back exhaust still available for purchase. Cause I heard that company just disappeared.