Factory Fatty Exhaust Pipe 13-19 Beta RR 250 300 - FMF 025157

The FMF Racing Factory Fatty 025157 exhaust is engineered as an homage to the original works cone pipes used by factory teams, combining exceptional craftsmanship with premium material selection. Designed to broaden and smooth the power curve, the Factory Fatty enhances performance across the full rev range, delivering improvements in low-end, midrange, and top-end power—making it ideal for serious riders seeking maximum gains.

Features

• Constructed from lightweight 20-gauge steel for the main body


• Utilises 19-gauge steel in the header section for added durability


• Hand-pounded seams to promote optimal flow transitions


• Supplied with O-rings to ensure a reliable seal (included on most models)


• Comprehensive power gains for versatile riding applications


• Factory-inspired aesthetic and build quality


• Configuration: Single


• No CARB compliance warning

Specifications

• Item ID: 025157


• Weight: 4.9 lbs


• Type: Pipes

Vehicle Fitment

BETA

• 250RR (2013–2019)


• 300RR (2013–2019)