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.

Upgrade your motorcycle’s performance with the Yoshimura RS-4 exhaust system, specifically designed for select KTM and Husqvarna 450 models. Crafted through a continuous development process in collaboration with factory teams, this exhaust enhances power output, reduces sound levels, and centralizes mass for improved handling and a competitive edge. The system features a pentagonal-shaped muffler that not only provides a distinctive aesthetic but also maximizes internal volume for optimal exhaust flow. Its polyresonant duplex front chamber and stepped, two-stage core baffle work together to fine-tune sound and performance, delivering a deep, aggressive tone while maintaining compliance with sound regulations.

Constructed with precision, the RS-4 system is compatible with spark arrestors and sound inserts, allowing customization based on rider preference and local noise restrictions. This slip-on exhaust is engineered to fit a range of KTM and Husqvarna models from 2015 to 2018, ensuring a seamless installation that enhances your bike’s overall efficiency. The lightweight design contributes to better maneuverability without compromising durability, making it an ideal choice for riders seeking a balance of performance and reliability.

Whether you’re racing or riding for recreation, the Yoshimura RS-4 exhaust system provides a significant upgrade over stock components. Its advanced features and meticulous engineering deliver increased horsepower, improved throttle response, and a refined exhaust note. Designed with quality materials and built to meet high-performance standards, this system is a valuable addition to your motorcycle, ensuring you stay ahead in competitive scenarios or on the trail.

Features:

• Pentagonal-shaped muffler for distinctive look and improved flow

• Maximized internal volume for enhanced performance

• Polyresonant duplex front chamber for sound tuning

• Stepped, two-stage core baffle for optimized sound and performance

• Spark Arrestor/Sound Insert compatible for customization and noise control

Fitment:
Husqvarna FC 4502016
Husqvarna FC 4502017
Husqvarna FC 4502018
KTM 450 SX-F2016
KTM 450 SX-F2017
KTM 450 SX-F2018
KTM 450 SX-F Factory Edition2015
KTM 450 XC-F2016
KTM 450 XC-F2017
KTM 450 XC-F2018