Exhaust Header FMF Gold Series Fatty — Beta RX 300 2025 (2T)

Description

The FMF Gold Series Fatty is an expansion chamber for two-stroke bikes. Its larger chamber volume broadens the usable powerband — it adds mid-range pull where you need it driving out of a corner, without giving anything up on top. The shape is dyno-tuned for each individual bike. Built from 19-gauge steel with a nickel-plated finish that takes rocks and salt far better than bare metal. FMF's Tru-Flo stamping holds the profile exactly, so the pipe drops onto the stock mounts without any pulling. Fits: Beta RX 300 (2025). Specifications — material: Steel, finish: Nickel-Plated, configuration: 2-Stroke. Note: does not meet the 2025 FIM sound limit — intended for practice and closed courses, not for FIM-sanctioned racing. Delivery 5–8 working days. SKU: 025318.