07-12 SUZUKI DL650: Yoshimura R-77 3/4 System Exhaust (Race/Stainless Steel/Stainless Steel/Carbon Fiber) Power is that which screams from every element of the Yoshimura R-77 3/4 Exhaust System. Yoshimura's 3/4 Exhaust System kits include a single muffler mounted on the right side, minimizing unwanted weight for the performance-oriented rider. Trapezoidal-shaped sleeve which maximizes muffler volume. Silhouette flows with the bike's lines. Complete style with 20-gauge 304L polished stainless steel tapered mid-pipe and under-belly mufler.