FMF Factory 4.1 RCT Exhaust - Aluminum CRF450R/RX 2021- 2025 041604 1820-1993 Competition Handlebar — ATV Race/Competition Ventilation system on the side

FMF Factory 4.1 RCT Exhaust - Aluminum CRF450R/RX 2021- 2025 041604 1820-1993 Competition Handlebar — ATV Race/Competition Ventilation system on the sideRCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage Innovative rear end cap features simple installation of tuning tip inserts or

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