I just bought a 1999 900rr and the previous owner has installed a Yoshi rs-3 aftermarket muffler and changed the flange plate. As I am not too much into noisy and sporty mufflers, I would like to install the stock muffler (which I luckily have) back. The only problem is that the stock muffler does not fit as the original flange plate is bigger. The picture tells the story as I am trying to fit the stock muffler after removing Yoshi muffler. Does anyone know what would be the easiest (and cheapest) way to fix this. My first idea was to 1) find a stock flange plate 2) grind off the current flange and 3) fit and weld the stock flange. Any ideas for shops around Brisbane to find the stock flange plate and possibly have the whole job done for me?