FMF 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)

Supplier SKU: 06-9907.F4. Supplier availability is subject to change.

Why Buy From FDY Performance?

Shop with FDY Performance Ltd, a UK-based motorcycle parts and accessories retailer. We offer friendly product support and UK delivery options. Please check your bike make, model and year against the fitment information before ordering.