FMF Gold Series Fatty Exhaust Pipe — Beta XTRAINER 250 LC 2023–2025 and others, carbon (2T)

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 XTRAINER 250 LC (2023–2025); Beta XTRAINER 300 LC (2023–2025); Beta XTRAINER 250 (2026); Beta XTRAINER 300 (2026). Specifications — material: Carbon Steel, finish: Nickel-Plated. 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: 025297.