Upgrade your Yamaha YZ250F with the FMF Factory 4.1 Rct Stainless Steel Exhaust. Featuring the latest resonance chamber technology, this exhaust system is designed to lower sound levels while maximizing power output. Its innovative canister shape increases internal volume, allowing for more sound-absorbing material, and the patented chamber design refines exhaust pressure for optimal performance. The factory forward engineering centralizes mass, making it less prone to crash damage. With a tuned exhaust optimized for your application and a lightweight titanium mid-pipe, installation is a breeze with the innovative rear endcap that allows for easy fitting of tuning tip inserts or spark arrestors.

Features:
* Resonance Chamber Technology: All new design incorporates the latest in resonance chamber technology.
* Sound Level Reduction: Patented core shape lowers sound level while maintaining maximum power output.
* Increased Internal Volume: Patented canister shape increases internal volume for more sound-absorbing material.
* Enhanced Exhaust Pressure: Patented chamber design enhances and refines exhaust pressure.
* Crash Damage Resistance: Factory forward engineering centralizes mass to reduce crash damage risk.
* Optimized Core Specifications: Tuned exhaust with optimized core specifications for each application.
* Easy Installation: Innovative rear endcap allows for simple installation of tuning tip inserts or spark arrestor.
* Lightweight Design: Titanium mid-pipe provides extreme lightweight for enhanced performance.

Notice:Closed Course Use Only
Item ID:044453
Type:Slip-On
Configuration:Single
Const:Aluminum
Finish:Natural
Midpipe:Stainless Steel
Endcap:Carbon
Spark Arrestor:Screen Insert (included)
Carb Warning:no
Quiet Insert:94dB Insert (included)
Weight:7.8 lbs.

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|YZ250F|
2024|Yamaha|YZ250FX|