i just installed 76mm varex muffler to my 2004 crossfire.i have few questions

1-how is the sound?
2-i really didnt like the view of the muffler,and drow the 2. picture (amatour) what do you think about it?there will be carbonfiber around the muffler.i don't know the possibilty of this system yet.if u have any other solutions or ideas please share.sorry for my really bad english.thnx for your help