exhaust system

If all you care about is performance then get Magnaflows, if all you care about is sounds then it really is a matter of personal choice. Check out youtube for some ideas.
 
I went the other way. I had MAC and ditched them to go flowmasters. MUCH better tone IMHO.

I now have flows on both my Mustangs.


If you want some more sound, put an O/R h-pipe on.

Also, a little more extreme, but a PI swap would change the tone of the exhaust a little bit as well. The PI cars sound a lot more aggressive with any exhaust than the NPI cars