Is anyone having any issues with their after market exhaust on their 08's? I talked to both Dr. D and yosh and they said they were very happy with the 06-07 pipe on the 08 so they were not developing a new one. White bros said they thought it sucked so they were developing a new one. I got tired of waiting on White Bros since it was back ordered to many times and ordered a yoshimura. But the header is smaller in diamater then the stock and I am not sure after bolting it up if it is sealing or if its leaking or what. Everything else installed just fine. I called yosh and they said it would be fine, but then asked me to send pics of the header and the manifold, why would they want these if they are so sure of their product and testing? I am not sure if I should take it off and return it, or try to ride it first, but I am concerned they wont take it back after i ride it. I would imagine, Dr. D's pipe would have this same issue if they are using the smaller 07 header as well. Anyone, anyone? Bueller, Bueller?