2013 mustang gt

2013 Mustang GT Premium Coupe 6 Speed Automatic. My wifes car, it is babied, just don't want to keep it and put a ton of miles on it. The only reason we are selling this car is due to extensive traveling now. This is a garage kept, low mile, well kept, well maintained car. All maintenance...

My buddy has a 07 gt mustang and his has kooks lt headers, catted x pipe, and slp loudmouths and. Ford racing hot rod cams and the car is super loud and sounds badass. What mods would make a 13 really loud and sound badass and I will can the 13 and I'd like to get a nice quad tip exhaust