Factory 4.1 RCT Exhaust Silencer 20-23 KTM Husqvarna GasGas 350-501 - FMF 045647

The FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap delivers impressive performance gains across the entire RPM range, thanks to advanced Resonance Chamber Technology™ and Factory Forward Engineering. Designed for reduced crash damage and optimal mass centralisation, this premium exhaust is crafted exclusively from aerospace-grade materials and carefully manufactured in Southern California. Its lightweight, compact design offers significant weight savings and improved ride dynamics, making it ideal for serious off-road enthusiasts.

Features

• Notice: Closed Course Use Only


• Exceptional power increase throughout the RPM range


• Weight reduction improves handling and ride response


• RTS (Rapid Tuning System) for quick adjustments


• Muffler constructed from natural aluminium with carbon end cap


• Midpipe constructed from premium stainless steel


• Aerospace-grade material quality for strength and durability


• Shorter overall length for less crash susceptibility


• Includes 94dB quiet insert and spark arrestor screen insert


• Manufactured in the USA

Specifications

• Item ID: 045647


• Type: Slip-On


• Configuration: Single


• Construction: Aluminium muffler, stainless steel midpipe, carbon end cap


• Finish: Natural


• Spark Arrestor: Screen insert (included)


• Quiet Insert: 94dB insert (included)


• Carb Warning: No


• Weight: 5.9 lbs

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)