Just putting this out there, I have a Berk race axle back that I'm thinking about trading for the sport version. I also might consider selling the race axleback , but would rather trade. I love the race version but the kids and wife thinks its too loud. Since its been fitted to a 128i, the flange has been cut, but that isn't a problem for a competent exhaust shop. Its in excellent condition and I hate to let it go, but anyways, pm for details or inquiry