Fmf Factory 4.1 Rct Slip-on Exhaust For Yamaha Yz450f & Yz450fx

Designed with advanced resonance chamber technology, this exhaust system minimizes sound levels while maximizing power output, providing a refined riding experience. The slip-on design features an easy-to-install rear endcap that accommodates tuning tip inserts or spark arrestors, making customization straightforward.