Fatty Exhaust Pipe 99-26 Yamaha YZ 250 - FMF 024053

The FMF Racing Fatty 024053 Gold Series pipe is engineered to deliver exceptional race-proven performance, drawing on over 35 years of racing expertise. Designed to broaden and smooth the power curve, this exhaust provides substantial gains across the entire power band—from stronger low-end torque to increased midrange response and over-rev. Made from durable carbon steel and protected by a nickel-plated finish, it offers reliability for all styles of off-road riding. The Fatty’s precise fit is ensured by FMF’s Tru-Flo stamping process, making it a trusted choice for riders seeking more tractable power and improved throttle control.

Features

• Broadens and smooths power delivery across the RPM range


• Delivers measurable power gains throughout the entire band


• Manufactured from tough carbon steel with nickel plating for enhanced durability


• FMF’s Tru-Flo stamping process guarantees an exact fit and optimum performance


• Compatible with both FMF and stock silencers (unless otherwise noted)


• O-rings included for secure installation


• FMF’s most popular 2-stroke expansion chamber design


• Weight: 5.0 lbs

Specifications

• Item ID: 024053


• Type: Pipe/Expansion Chamber


• Carb Warning: No


• Material: Carbon steel, nickel plated


• Weight: 5.0 lbs

Vehicle Fitment

Yamaha

• YZ250 (1999–2026)