I'm selling a Magnaflow 3" Magnapack Comp Catback system for a 2011-12 Shelby GT500 or 5.0L GT. Magnaflow part number is 15590. I am selling this system because I am selling my Shelby. Exhaust was on the car for about 1500 miles or less. Exhaust tubing is 3" and the tips are 4". The exhaust is in great condition and was a breeze to install. I'm looking to get $600 shipped for the exhaust. I accept paypal and I am located in Lancaster, PA. The exhaust is boxed up and ready to go. PM me with any questions. Thanks, Jason.