Not sure which 2009 Ford Mustang Performance Mufflers are right for you? We have over 976 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"my local muffler shop put it on in an hour, its alot smaller then the stock muffler so i didnt want to mess with it. Has a mean growl on the exterior, with little interior noise, which is the reason i went with this muffler in the first place! I am very happy and would recommed it to anyone! the only thing i would do differently is get the dual outlet for a louder/meaner growl!!" —John S from Westminster, MD bought a Flowmaster 40 Series Delta Flow Mufflers for a 2009 Ford Mustang.