Arrow 71902PR Pro-Race Full Exhaust System w/Twin Titanium Mufflers & Steel End Cap for Honda CB 650 R/CBR 650 R 19-23Arrow Pro Race Exhaust System Honda CBR650R CB650R At the turn of the 21st century, MotoGP saw a revolution in exhaust design that strayed away from old school round canister shapes and instead incorporated the muffler into the mid pipe itself. This design not only reduces mass but also overall weight. Now, this same design is available to you in the form of the Arrow Pro Race Exhaust. From its cone shaped sleeve, round end cap, integrated exhaust