How much does a Flowmaster Muffler/Exhaust cost? And will It make my 95 Mustang have sound?

Im trying to buy a flowmaster exhaust or muffler for my 94 vg Mustang will that give it sound?|||If your Mustang is a V6 it will make it louder and sound different, expect minimal HP gains though probably around 8-13 HP for V6.And look for it to be around $70-$80 dollars just for muffler. entire kits from $545.|||it'll make it louder. You can $100 maybe