Yoshimura RS-4 Slip-On Exhaust System for Yamaha YZ250F and YZ250FX

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.

Enhance your off-road riding experience with the Yoshimura RS-4 slip-on exhaust system designed specifically for Yamaha YZ250F and YZ250FX models from 2019 to 2024. Crafted from durable stainless steel, this exhaust system combines advanced performance features with a sleek RS-4 styling, giving your bike a competitive edge on the trail. Its design emphasizes increased power output, reduced sound levels, and centralized mass for improved handling and responsiveness. The RS-4 muffler features a pentagonal shape and maximized internal volume, ensuring optimal exhaust flow and performance. The polyresonant duplex front chamber and stepped, two-stage core baffle work together to deliver a balanced sound profile while maintaining a quiet operation suitable for various off-road environments. This slip-on muffler is compatible with spark arrestors and sound inserts, making it versatile for different riding conditions. Installation is straightforward, and the system seamlessly integrates with your bike's existing setup, providing a significant upgrade over stock exhaust options. The Yoshimura RS-4 exhaust is ideal for riders seeking improved horsepower, a distinctive look, and a refined sound, all backed by Yoshimura’s reputation for quality and innovation. Whether you’re competing or enjoying trail riding, this exhaust system offers a substantial performance boost while maintaining compliance with off-road sound regulations. It’s a reliable choice for serious riders who demand durability and top-tier performance from their motorcycle exhaust components.

Features:

• Pentagonal-shaped muffler for a distinctive look and optimized performance

• Maximized internal volume to enhance exhaust flow and power output

• Polyresonant duplex front chamber for refined sound and efficiency

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

• Compatible with spark arrestors and sound inserts for versatile riding conditions

Product Type: Exhaust
Exhaust Type: Slip-On Muffler
Material: Stainless Steel
Styling: RS-4
Model: RS4
Segment: Offroad
Division: Exhaust
Class: Mufflers, Pipes, & Systems
Sub Class: Mufflers, Silencers, Slip Ons

FITMENT:
2019 Yamaha YZ250F
2020 Yamaha YZ250F
2020 Yamaha YZ250FX
2021 Yamaha YZ250F
2021 Yamaha YZ250FX
2022 Yamaha YZ250F
2022 Yamaha YZ250FX
2023 Yamaha YZ250F
2023 Yamaha YZ250FX
2024 Yamaha YZ250FX