Factory 4.1 RCT Exhaust Silencer 18-23 KTM Husqvarna GasGas 350 450 - FMF 045628

The FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap introduces the latest advancements in FMF Resonance Chamber Technology™ both internally and externally. With a compact, crash-resistant design and Factory Forward Engineering, this slip-on system moves the muffler closer to the engine to help centralise mass for optimal handling. Constructed entirely from aerospace-grade materials in Southern California, it delivers significant power gains and weight savings, all with rapid tuning capability.

Features

• Closed course use only


• Slip-on configuration for straightforward installation


• Constructed from natural aluminium with carbon end cap


• Stainless steel midpipe


• Screen-type spark arrestor insert included


• 94dB quiet insert included


• Significant weight advantage (7.4 lbs)


• Massive power increase across the RPM range


• RTS (Rapid Tuning System) for easy tuning


• Robust and corrosion-resistant build


• Exclusively manufactured from proprietary alloy-grade titanium and premium materials

Specifications

• Item ID: 045628


• Type: Slip-On


• Configuration: Single


• Construction: Aluminium


• Finish: Natural


• Midpipe: Stainless Steel


• Endcap: Carbon


• Spark Arrestor: Screen insert (included)


• Quiet Insert: 94dB insert (included)


• Weight: 7.4 lbs

Vehicle Fitment

GAS GAS

• EX 350F (2021–2023)


• EX 450F (2021–2023)


• MC 350F (2021–2023)


• MC 450F (2021–2023)

HUSQVARNA

• FC 350 (2019–2022)


• FC 450 (2019–2022)


• FC 450 Rockstar Edition (2018, 2020–2021)


• FX 350 (2019–2022)


• FX 450 (2019–2022)

KTM

• 350 SX-F (2019–2022)


• 350 XC-F (2019–2022)


• 350 XC-F Kailub Russell (2021)


• 450 SX-F (2019–2022)


• 450 SX-F Factory Edition (2018, 2020–2021)


• 450 XC-F (2019–2022)