Mass 2 into 2 Hot Rod complete exhaust system. New from the Italian Mass comes this awesome 2 into 2 exhaust system specifically designed for the new BMW R nineT. Designed for performance and style, this system is also much lighter than the stock setup. The head pipes and the silencer are manufactured from heavy gauge stainless steel, giving the exhaust a deep throaty note. The headers and the exhaust are polished to a chrome like finish.