I just upgraded my exhaust and I now have the 05 - 09 Stock GT Mufflers and Mid Pipes for sale. These parts came off a new GT and I put about 5k miles on them. I'm would like to get around $120 for all of it. I live in Charlotte, NC so a local pickup would save you a lot on shipping. I have gotten some quotes off Fedex and UPS and they are both at about $150 for shipping depending on location, send me your zip and I can check.
If your curious on what they sound like here is a vid of my car when I had them on it.
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1997 GT - Sold
1995 Cobra - Vortech S-Trim - Sold
1999 Lightning - Eaton @ 16lbs - Sold
2007 Mustang - Pypes Shorty Headers, GT H-Pipe, Borla Stinger Catback - FOR SALE