The popular Yoshimura R-77 Full System offers outstanding performance, thanks to being developed in the heat of competition. Trapezoidal design, which allows a large volume of packing material and in turn delivers top performance. The R-77 muffler's front cap is MIG-welded, while the end cap is riveted using high-end 304-L polished stainless steel rivets and bands. Superbike technology and styling Trapezoidal-shaped sleeve Large volume of packing material Straight baffle for ample flow Innovative end-cap Removable Low-Volume Insert Stainless steel header and tail-pipe Stainless steel header and tail-pipe Yoshimura Works Finish is not a coating, but a media blast finish using our own special recipe of ingredients The result is a stainless steel exhaust that after it goes through a heat cycle on the motorcycle, takes on unique coloring that looks much like those works components our factory racers use Contemporary Satin/matte finish Uniform heat coloration Increased fatigue strength Increased scratch and stain resistance