Post by john on Mar 7, 2014 14:26:05 GMT -7
These are the standard Shelby GT500 mufflers (PART# FMS-M-5230MGTCA1) for your 2011-2014 Mustang GT. They are louder than stock GT with a nice growl during acceleration. I decided I want a little more sound, so I am replacing them. They have only 1,500 miles of use on my 2013 GT and are in excellent condition as my car is a summer only cruiser. I paid $355 new and just want a fair price now. Make me an offer if you are interested.