Description

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.

The Yoshimura RS-4 exhaust system exemplifies innovative engineering designed to enhance your motorcycle’s performance. Built in collaboration with factory teams, this system focuses on increasing power output, reducing sound levels, and centralizing mass for better handling and balance. Crafted with precision, the RS-4 features a pentagonal-shaped muffler that optimizes internal volume, aiding in efficient exhaust flow and sound attenuation. Its polyresonant duplex front chamber further improves performance by balancing exhaust pulses for smoother power delivery and reduced noise. The stepped, two-stage core baffle design allows for customizable sound and performance characteristics, making it suitable for a variety of riding conditions. Additionally, the system is compatible with spark arrestors and sound inserts, providing flexibility for different environments and noise regulations.

Features:

• Pentagonal-shaped muffler for optimized exhaust flow

• Maximized internal volume enhances performance

• Polyresonant duplex front chamber for balanced exhaust pulses

• Stepped, two-stage core baffle for customizable sound and flow

• Compatible with spark arrestors and sound inserts for versatile use

Fitment:
Husqvarna FC 2502016
Husqvarna FC 2502017
Husqvarna FC 2502018
Husqvarna FC 3502016
Husqvarna FC 3502017
Husqvarna FC 3502018
Husqvarna FX 3502017
Husqvarna FX 3502018
KTM 250 SX-F2016
KTM 250 SX-F2017
KTM 250 SX-F2018
KTM 250 XC-F2016
KTM 250 XC-F2017
KTM 250 XC-F2018
KTM 350 EXC-F2017
KTM 350 EXC-F2018
KTM 350 EXC-F2019
KTM 350 SX-F2016
KTM 350 SX-F2017
KTM 350 SX-F2018
KTM 350 XC-F2016
KTM 350 XC-F2017
KTM 350 XC-F2018
KTM 500 EXC-F2017
KTM 500 EXC-F2018
KTM 500 EXC-F2019