Hi i just got my crossfire and want to make it make some noise i love my car , and the stock exhaust tips. Is there any way i can keep these on. This is my first car and i dont know much about them can you tell me if slk mufflers will fit on it? Im just curious im 17 so money is a little tight nothing crazy. but brands sugggestion would be good i was looking at the flowmasters do these sound good like the 60 series. Thanks alot