FMF Factory Fatty Pipe 025183

If you're running a stock exhaust system, you're leaving measurable power on the table across your entire RPM range. The FMF Factory Fatty Pipe delivers the kind of broad, linear power gains that factory racing teams engineered into their competition setups—smoothing out the power curve while adding real numbers in the low-end, mid-range, and top-end revs. Whether you're trail riding, racing, or pushing hard in the dirt, this pipe transforms how your bike responds without requiring custom fabrication.

Built with the same craftsmanship standards as factory team equipment, the Fatty uses hand-pounded seam construction to ensure smooth internal flow transitions that reduce turbulence and maximize scavenging efficiency. The combination of lighter 20-gauge steel body and 19-gauge steel header creates an optimal balance of durability and weight reduction—giving you measurable horsepower gains without compromise.

• Hand-pounded seam construction
• 20 gauge steel body
• 19 gauge steel header
• Broadens power curve
• Increased low-end torque
• Mid-range power gains
• Enhanced over-rev capability
• Factory team design heritage
• Bolt-on installation
• MPN: 025183