The Yoshimura RS-4 Slip-On exhaust has been put to the test and has proven its capabilities at the highest level of competition. In 2010 the RS-4 muffler helped Ryan Dungey claim the AMA 450 Supercross and Motocross championships in his rookie season. The Yoshimura-backed GEICO Honda team also took home both East and West Coast Supercross Lites titles in 2012 using the Yoshimura RS-4 exhaust.
Utilizing the same R&D that helped bring success at the national level has resulted in a unique exhaust design that provides an unrivaled combination of power and quiet exhaust note. The Yoshimura RS-4 Pipe features an innovative carbon cone end cap, a two staged stepped baffle, and a polyresonant duplex chamber which acts as a muffler within a muffler to help save weight and centralize mass.
Nearly all Yoshimura exhaust systems that have won Motocross or Supercross championships are members of the Yoshimura Signature Series. All Signature Series pipes have been tested, documented and marked as required by federal and state regulations.
All Yoshimura Enduro Series exhausts are tailpipe emissions compliant, provide forest-friendly noise levels, and come with a USFS-approved spark arrestor. Working in conjunction with factory race teams has allowed Yoshimura to develop a exhaust system that gives you an unparalleled competitive advantage.
450SX-F Factory Edition 2012
Yoshimura R&D Announces New Video Series Highlighting The Company’s U.S.-based Operations Chino, California, April 4, 2016 — Yoshimura R&D of America today announced the launch of the first in a series of videos celebrating the Yoshimura legacy of designing and producing their legendary exhaust systems in America. This first video presents an overview of the heart and soul of the company: its workforce. For decades, everyone at the Chino, California-based company — from designers, engineers and welders to marketing personnel and management — has contributed in their own way to making the name Yoshimura synonymous with superbike racing. Today, the Yoshimura tradition of teamwork is thriving. Having started as a family business, the company culture promotes working in close collaboration. That is especially valuable when researching and developing products in the heat of competition. The benefits of successfully conducting race-proven R&D include an ability to instantly react to the needs of the racers who rely on Yoshimura for their exhaust systems as well as identifying and meeting the demands of American motorcycle riders. Enthusiasts as well as motorcycle dealers will undoubtedly enjoy this inside look at Yoshimura’s Southern California headquarters. It’s a welcome reminder that motorcycling at every level consists of a close-knit community of people with a shared passion for the sport. About Yoshimura R&D of America Yoshimura is “The Leader in Performance” and has been for more than 60 years. With unmatched skills, knowledge, and passion for racing, Yoshimura is on the forefront of the aftermarket exhaust industry. Yoshimura systems are race bred and feature the same legendary performance, fit and quality that has been their trademark for more than six decades. To learn more about Yoshimura and view their wide variety of performance products, visit www.yoshimura-rd.com.
Warranty fulfilled by Yoshimura Inc.