FMF Factory 4.1 RCT Exhaust - Titanium KX250F/X 2021-2024 042398 1820-1984 Youth Tech 3S Boots — 32 the MX Plus-1 Socks feature

the MX Plus-1 Socks feature a mesh construction for high levels of breathability with reinforced zones for enhanced rider comfort

DDS technology

backing plate and mounting hardware for easy installation Flows better than stock or competing units

No modification to stock components

High-heat-resistant thermal packing

FMF Factory 4.1 RCT Exhaust - Titanium KX250F/X 2021-2024 042398 1820-1984 Youth Tech 3S Boots — 32 the MX Plus-1 Socks featureRCT (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