Features: The FMF Rev pipe focuses its power delivery in the middle and upper rpms. Dyno and track tested for every application. O-rings included. NOTE: Will not pass 2025 FIM sound regulation.
FMF Exhaust Factory 4.1 Rct Exhaust Quiet Insert 1-1/2 Spark Arrestor Fmf 040678
FMF Exhaust Yamaha YZ450F 2018–2026 Powercore 4 Hex Silencer FMF 044441 UK
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FMF Exhaust Beta 200RR 2020-2025 Gnarly Exhaust Pipe FMF025269
FMF EXHAUST STICKER KIT FACTORY 4.1
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