we just finished installing the pipe kit that I purchased from Hauck. It sounds awesome! I had the CPR pipes on my last one and they sounds just as good. She's ready for action. I almost did some field testing but decided to wait for early snow again. The nice part is at idle it sounds stock. When you throttle it you can tell somethings done. Who is running a roller secondary? That may be my next step. The pipes fit great, and look nice too. I am very happy so far.