I have a furbur carbon tank on my 999 and love it! I can get about 4.5 gal of gas in it and the quality is great. I did have a leak around the seam that goes around the bottom front portion of the tank, but I coated it with caswells "dragons blood" and it's solid now. If you get a carbon tank of any brand I would seal it with caswells before you install it.