I was in the impression that when you use straight Pipe you may encounter the problem of not passing local state inspection perhaps that is only in my state.
I have being reading all the posting about M5 F10 2013 exhaust performance options and I have the concern that Dinan is the only vendor that BMW will continue to honor you car warranty. After searching for weeks still can't find anything about Dinan products that they may have available today for M5 F10. I even contact them directly no response from then yet.
Please provided me your feedback and advise .
Thanks