Im selling my 2000 S4 Mongoose cat back exhaust system. Full 3" stainless steel with two polished mufflers. Used for about 3 months before I traded the car in on a 2000 A4. The exhaust is in perfect condition. No bumps or scrapes. This exhaust sounds great while providing great improvement over the stock exhaust. I paid over 700 new. Im asking 450 shipped to your door via Fedex express delivery. I accept paypal and all other forms of payment. If interested, feel free to email me at or call my cell at 843-450-8544. Thanks for your time and patience. Ryan