Fatty Pipe Gold Series: the best of 35 years of racing—this 2-stroke pipe broadens and smooths the powerband for more low-end, mid-range, and over-rev, with crisper throttle response. Nickel-plated carbon steel, Tru-Flo process for a precise fit. Compatible with FMF or stock silencers (unless otherwise noted). O-rings included. Not FIM 2025 compliant.
Backed by over 35 years of racing expertise, the Fatty Gold Series exhaust delivers proven track performance.
It broadens and smooths the power curve while increasing output across the entire rev range: more low-end torque, stronger midrange, and better over-rev.
Whatever your riding style, the Fatty provides the advantages you're looking for.
Easier-to-use power and crisper throttle response.
Power gains across the entire powerband.
Carbon steel construction with a nickel-plated finish for maximum durability.
FMF Racing's Tru-Flo forming process ensures a perfect fit and optimal performance.
Compatible with FMF or stock silencers (unless otherwise noted).
Our most popular 2-stroke exhaust.
O-rings included.
Note: Not compliant with 2025 FIM sound regulations.
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Gold Series Fatty™ Pipe
Fatty Pipe Gold Series: the best of 35 years of racing—this 2-stroke pipe broadens and smooths the powerband for more low-end, mid-range, and over-rev, with crisper throttle response. Nickel-plated carbon steel, Tru-Flo process for a precise fit. Compatible with FMF or stock silencers (unless otherwise noted). O-rings included. Not FIM 2025 compliant.
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Fatty Pipe Gold Series: the best of 35 years of racing—this 2-stroke pipe broadens and smooths the powerband for more low-end, mid-range, and over-rev, with crisper throttle response. Nickel-plated carbon steel, Tru-Flo process for a precise fit. Compatible with FMF or stock silencers (unless otherwise noted). O-rings included. Not FIM 2025 compliant.