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.
2016 Individual M5
2015 F86 X6M
2015 i3-REX- 2012 Wrangler Unlimited