This is basically a brand new axle back system I am selling for $200. It is coming off my 07 GT and has less than 2000 miles on it, and is in excellent condition. I am selling because it is a little loud for my taste, I want something a bit deeper and quieter. It provides an amazing sound, and a good power increase. I am also willing to trade someone for their system if they want to go that route also. If you have any questions email me at [email protected], thanks. I'm located in wheeling Illinois, so would prefer local pickup, but shipping is $30 to everywhere else.