Factory 4.1 RCT Exhaust Silencer 20-25 Beta RR 350 390 430 480 - FMF 045668

Delivering industry-leading performance and innovation, the FMF Factory 4.1 RCT Titanium Anodized Slip-On with Carbon Cap brings advanced Resonance Chamber Technology™ and a robust, lightweight design to the off-road market. Developed for closed course use, this slip-on exhaust offers substantial power gains throughout the rev range, enhanced durability thanks to aerospace alloy-grade titanium, and significant weight savings. Its compact configuration positions the muffler closer to the motor for improved mass centralisation, while the Rapid Tuning System (RTS) streamlines setup for serious riders.

Features

• Closed course use only for maximum performance
• Slip-on type with single configuration enhances power and torque
• Constructed from aerospace-grade titanium with blue anodised finish
• Impact-resistant carbon fibre end cap
• Stainless steel midpipe for durability
• FMF’s proprietary alloy blend ensures strength and lightness
• Factory Forward Engineering centralises mass by shortening the overall muffler length
• Significant weight reduction at just 7.1 lbs
• Includes screen-type spark arrestor and 94dB quiet insert
• Rapid Tuning System for simplified adjustments
• Fully manufactured in Southern California

Specifications

• Item ID: 045668
• Type: Slip-On
• Configuration: Single
• Body Material: Titanium
• Finish: Blue Anodised
• Midpipe: Stainless Steel
• End Cap: Carbon fibre
• Spark Arrestor: Screen Insert (included)
• Quiet Insert: 94dB Insert (included)
• Weight: 7.1 lbs

Vehicle Fitment

BETA

• 350RR (2020–2025)
• 390RR (2020–2025)
• 430RR (2020–2025)
• 480RR (2020–2025)