I am selling my Magnaflow exhaust system from my 2006 Cobalt LT. It is part number 16618. I literally put about 35-40 miles on it. It is all but new. I was debating on buying another car before I bolted it on. After awhile of not finding anything, I quit looking at buying another car and went ahead and bolted this exhaust on. I drove for 2 days and got a call about a car that I couldn't refuse. Unbolted the exhaust before trading it in. It could be missing a 2 bolt gasket, not sure. It fit great and sounded great. Magnalow has a sound file for this. Fits 2005-2009. Cobalts with the 2.2liter. Double check with Magnaflow. I had this on my 2006 LT sedan. Shipping is free anywhere in the lower 48 states. $400. Contact me if your interested or email me at tjkiesler@sbcglobal.net for pictures.