The FMF Factory Fatty pipe delivers a broad, smooth power curve while boosting performance gains across the entire rpm range of your Honda CR250R motorcycle.
Modeled after factory team cone pipes, it features lighter 20-gauge steel for the body, 19-gauge steel for the header, and hand-pounded seams for smooth flow transitions.
Top Features: FMF Factory Fatty Pipe
Factory-inspired design reminiscent of works cone pipes used by professional race teams.
Broadens and smooths out the power curve with increased low-end, mid-range, and over-rev gains.
Constructed using lighter 20-gauge steel for the main body and 19-gauge steel for the header.
Hand-pounded seams ensure smooth exhaust flow transitions and exceptional durability.
Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.
Fitment List
Year Range
Vehicle Brand
Vehicle Model & Sub-Model
2005-2007
Honda
CR250R
Frequently Asked Questions
Q: Does this pipe require jetting adjustments? A: Yes, aftermarket expansion chambers typically require carburetor jetting changes to achieve optimal air-fuel ratios and performance.
Q: What gauge steel is used in the construction of the Fatty? A: It features a lighter 20-gauge steel body and a robust 19-gauge steel header portion.
Expert Pro-Tip: When installing a new expansion chamber, always replace the O-rings and use high-temperature silicone sealant at the exhaust spigot to prevent leaks and protect the flange.
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