Factory Fatty Exhaust Pipe 02-18 Yamaha YZ 85 - FMF 024039

The Factory Fatty 024039 by FMF Racing revitalises your riding experience with a design inspired by legendary “works” or cone pipes once favoured by factory teams. Expertly crafted from high-quality materials, this exhaust system delivers a broader, smoother power curve, enhancing performance across the entire power band. Whether you ride trails, compete in motocross, or enjoy spirited track days, the Factory Fatty ensures noticeable improvements in low-end torque, midrange drive, and top-end over-rev, offering versatile gains for every riding style.

Features

• Lightweight 20-gauge steel main body for improved power-to-weight ratio


• Durable 19-gauge steel header section enhances strength and longevity


• Hand-pounded seams ensure smooth internal flow transitions


• Includes O-rings for optimal sealing on most models


• Consistently delivers increased power throughout the rev range


• Item ID: 024039


• Pipe type: Fatty


• No carburettor warning issues

Specifications

• Weight: 3.0 lbs


• Material: 20-gauge steel body, 19-gauge steel header


• Includes O-rings


• Type: Pipes

Vehicle Fitment

Yamaha

• YZ85 (2002–2018)