I blew out the graphite exhaust gasket on my system, when I went to order a replacement I discovered that White Brothers doesn't offer a replacement and the Yamaha part doesn't fit. What can I do fill up the gap? I was thinking of heating up the 4 flanges and pounding them into a smaller circle that will fit the headpipe. Then maybe wrapping the whole thing with a layer of exhaust tape. What do you guys think?