IMO, you cant go wrong with any of the current offerings available. All of them are a bit different in what options they offer in terms of tip size, functionality, power, but a better sound is the end result of all of them and that improves the overall experience as the car is really screaming for an exhaust.
21" DPE Super Concave, Meisterschaft GTC w/LXR midpipes, BMC filters, Charcoal delete, H&R springs, IND cosmetic pkg, M-Performance Spoiler, Wrapped roof, Hardwired V1, Coded
2013 X6 50i MSport
2008 SmartCar - 2012 Wrangler Unlimited