Original: $852.63
-70%$852.63
$255.79The Story
Upgrade your ride with the FMF Factory 4.1 RCT slip-on muffler, featuring advanced Resonance Chamber Technology™ for increased performance. The shorter overall length, aerospace grade materials, and centralization of mass all add to the durability and power of this muffler (made 100% in California). For the FMF fan looking to level up.
-Available in Blue Anodized Titanium Muffler with Carbon End CapÂ
-Massive Power gains throughout the RPM range.
-Huge weight savings
-New RTS (Rapid Tuning System)
-FMF uses the highest quality proprietary blend of alloy grade titanium made specifically to our standards.
-See Features Tab -> Fitment for header compatibilityÂ
Fitment:
2025|Beta|450 RX|Â
2024|Beta|450 RX|
Description
Upgrade your ride with the FMF Factory 4.1 RCT slip-on muffler, featuring advanced Resonance Chamber Technology™ for increased performance. The shorter overall length, aerospace grade materials, and centralization of mass all add to the durability and power of this muffler (made 100% in California). For the FMF fan looking to level up.
-Available in Blue Anodized Titanium Muffler with Carbon End CapÂ
-Massive Power gains throughout the RPM range.
-Huge weight savings
-New RTS (Rapid Tuning System)
-FMF uses the highest quality proprietary blend of alloy grade titanium made specifically to our standards.
-See Features Tab -> Fitment for header compatibilityÂ
Fitment:
2025|Beta|450 RX|Â
2024|Beta|450 RX|
