Description

Building performance exhaust systems for the factory race efforts improves our research and development, which improves the overall performance of our products. Adapting technology we learn on the track to our consumer products is what makes the Yoshimura name synonymous with quality and performance. One look at our RS-9 and RS-4 exhaust systems illustrates the endless cycle of development. Working in conjunction with the factory teams has provided us with new ways to increase performance, lower sound levels and centralize mass. The end result is a product that gives you an unparalleled competitive advantage.

Designed specifically for Kawasaki KLX140 models from 2011 to 2017, the Yoshimura RS-9 exhaust system offers a significant upgrade in performance and sound. Built with racing-inspired technology, this system enhances engine efficiency by increasing internal volume and optimizing exhaust flow, which can lead to improved power output and throttle response. Its quality craftsmanship ensures durability and a high-performance edge for both competitive and recreational riders.
Constructed with a parallelogram-shaped muffler, the RS-9 system features a straight, single-core baffle that provides efficient exhaust flow while maintaining a refined sound profile. The system includes a low-volume sound insert capable of further reducing noise levels, making it suitable for riders who seek a performance boost without excessive noise. The integration of this system with factory Kawasaki models enhances overall vehicle performance by reducing weight and centralizing mass for better handling and stability.
The RS-9 exhaust system is a product of Yoshimura’s ongoing development process, which involves close collaboration with factory racing teams. This partnership ensures that each component benefits from the latest technological advances, translating into a product that offers an unparalleled competitive advantage. Whether for trail riding, motocross, or recreational use, this system delivers a noticeable upgrade in power, sound quality, and overall riding experience, making it a preferred choice among serious enthusiasts and professional racers alike.

Features:

• Parallelogram-shaped muffler for optimized exhaust flow and aesthetics

• Maximized internal volume to enhance engine performance and response

• Straight, single-core baffle for efficient sound and exhaust flow

• Low-volume sound insert capable of reducing noise levels without sacrificing performance

Fitment:
Kawasaki KLX1402011
Kawasaki KLX1402012
Kawasaki KLX1402013
Kawasaki KLX1402014
Kawasaki KLX1402015
Kawasaki KLX1402016
Kawasaki KLX1402017
Kawasaki KLX1402018
Kawasaki KLX1402019
Kawasaki KLX1402020
Kawasaki KLX140G2017
Kawasaki KLX140G2018
Kawasaki KLX140G2019
Kawasaki KLX140G2020
Kawasaki KLX140G2021
Kawasaki KLX140L2011
Kawasaki KLX140L2012
Kawasaki KLX140L2013
Kawasaki KLX140L2014
Kawasaki KLX140L2015
Kawasaki KLX140L2016
Kawasaki KLX140L2017
Kawasaki KLX140L2018
Kawasaki KLX140L2019
Kawasaki KLX140L2020