I know muffler placement can make a world of difference for exhaust note. Mustangs mufflers are under the middle of the car. That makes about 4 more feet for the exhaust note to travel through. I heard a mustang with 50s on it and I loved it. Im thingking about putting some 50s in the stock locations but exit the tips on opposite sides. So that gives me about 2 to 3 feet of pipe for the sound to travel through before exit. What do yall think?