[AMPowerJ]

I don't think that most people that have the BMW performance regret it. I haven't read one account of this happening actually.

But buy what you want.

It is expensive, but buying exhausts is an exercise in compromises across the board. There is no perfect exhaust. Cost, sound, performance, drone, looks, weight, quality, etc. I say again, there is no perfect solution. For me the BMW Performance exhaust is close to perfection.