I am a Bainbridge Island Carguy with a newly arrived C8. I recently sold my 2007 C6 to a gent who wasnt interested in the Flowmaster Force ll exhaust system I had purchased for the car. It was installed for 2 weeks only and fits any C6. A mellow V8 sound, I much preferred it to the stock system.
The complete catback system, all parts, was $1,040 plus tax. New condition in original box. I would like to sell it for $450. Or best offer. 
Bill Karr
360-317-6964
evergreenc@yahoo.com