Powercore 4 Hex Exhaust Silencer 14-19 Yamaha WR YZ 250 F FX - FMF 044423

Developed for riders who demand enhanced performance without the premium price, the FMF Racing Powercore 4 HEX slip-on muffler delivers an overall boost in power and torque. Built with rugged stainless steel and aluminium materials for durability, this exhaust features race-proven internals to maximise exhaust flow using Hi-Flo technology. With its removable spark arrestor and high-quality construction, it’s designed for riders seeking both improved performance and lasting reliability.

Features

• Overall increase in power and torque across the rev range


• Durable stainless steel and aluminium construction ensures long-term reliability


• Space Age internal packing material delivers maximum longevity


• Internal core shape employs Hi-Flo technology for enhanced sonic evacuation and higher flow


• Includes a removable spark arrestor for versatile riding environments


• Lightweight design aids handling (5.8 lbs)


• Designed as a slip-on system for straightforward installation


• Available quiet insert sold separately


• Closed course use only

Specifications

• Item ID: 044423


• Type: Slip-On


• Configuration: Single


• Construction: Aluminium


• Finish: Natural


• Midpipe: Stainless Steel


• Endcap: Stainless Steel


• Spark Arrestor: Screen insert (included)


• Quiet Insert: Sold separately


• Weight: 5.8 lbs

Vehicle Fitment

Yamaha

• WR250F (2015–2019)


• YZ250F (2014–2018)


• YZ250FX (2015–2019)