Originally Posted by t3323
To all that have the BMW Performance system, would you do it over again? Anything you don't like about it?
yup. I've had a total of 9 exhaust, and combos of parts. BMW performance is my favorite. But there are other good ones as well. If you want a full system and medium volume go Akra, sounds good, but titanium is a bit boring to me. Or I think full Dinan is slightly louder and has a more aggressive sound. If you want really loud and very unique/exotic go AA. I personally like OEM cats so I have no inspection or warranty issues, and I like the "could be from factory sound". Not too loud, but you know something is there.