I have a 16633 CatBack System just removed and replaced by stock system. Sweet sound for everybody but my wife. Since 08' XF Coupe was her birthday present , her opinion held some sway over decision to replace with stock system. She is now a happy camper which makes me a happy camper. Anyway system is available for sale . $300.00 plus shipping which cost me $60.00 KS City to Stuart, FL- Fedex for the stock system. If interested reply with Email address and I will send pix. Steve Schimming my e-mail address ss89@comcast.net Will attempt to post pix on forum.