Engineered for riders seeking race-inspired performance without the premium price tag, the FMF Powercore 4 HEX 045645 slip-on delivers noticeable gains in torque and horsepower while featuring a robust build designed for durability. Constructed from stainless steel and aluminium with advanced internal packing, this high-flow muffler optimises exhaust evacuation and includes a removable spark arrestor, making it ideal for demanding off-road environments.

Features

• Notice: Closed Course Use Only


• Race-inspired slip-on design for increased power and torque


• Durable aluminium construction with stainless steel midpipe and endcap


• Natural finish resists wear and corrosion


• Space Age internal packing material ensures long service life


• Internal Hi-Flo core enhances exhaust flow


• Removable screen-type spark arrestor included


• Compatible with quiet insert (sold separately)


• Lightweight design (4.5 lbs / approx. 2 kg)


• Single configuration, easy to install

Specifications

• Item ID: 045645


• Type: Slip-On


• Configuration: Single


• Construction: Aluminium


• Finish: Natural


• Midpipe: Stainless Steel


• Endcap: Stainless Steel


• Spark Arrestor: Included (screen insert)


• Quiet Insert: Available (sold separately)


• Weight: 4.5 lbs


• Carb Warning: No

Vehicle Fitment

GAS GAS

• EC 250F (2021)


• EC 350F (2021)

HUSQVARNA

• FE 250 (2020–2021)


• FE 350 (2020–2023)


• FE 350 Rockstar Edition (2021)


• FE 450 (2020–2021, 2023)


• FE 501 (2020–2023)

KTM

• 350 XCF-W (2020–2022)


• 450 XCF-W (2020–2021, 2023)


• 500 XCF-W (2020–2023)