I just joined the forum and already need help with my 06 R6. I am looking into getting a mid-pipe and a new slip-on but I am confused about the headers. My confusion begins with can I use the stock headers? If I can, is the cat clamped on or do I have to cut it off? If I can't use stock headers does anyone now what I can do that won't burn a hole in my pocket book? Any help good or bad is greatly appreciated.