If youâ€™ve got a DR-Z400SM, youâ€™ve got options when it comes to exhausts. The RS-2 single-sided system is a great all-around pipe thatâ€™s lightweight, has good ground clearance, and gives you big power gains. And it looks cool. If thatâ€™s not enough, it comes with the little touches and features youâ€™ve come to expect from Yoshimura. It has a plasma-cut heat shield with our Yoshimura logo, high-quality chrome steel exhaust springs, and even spring vibration dampers with the Yoshimura logo molded in. Want to spice it up a bit? Try the Signature Series Dual RS-4 Full System.