Overview
The FMF Factory Fatty Pipe is your ticket to classic “works bike” performance. Inspired by the hand-crafted cone pipes once used by factory race teams, the Factory Fatty delivers gains across the entire powerband—more low-end torque, stronger midrange, and better over-rev. Whether you're racing or trail riding, this pipe boosts usable power everywhere you need it.
Key Features
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Full Powerband Gains: Improved throttle response from bottom to top RPMs.
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Factory-Style Build: Modeled after works-team cone pipes with premium materials and craftsmanship.
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Hand-Pounded Seams: Smoother flow transitions for more efficient exhaust velocity.
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High-Grade Steel Construction: 20-gauge body and 19-gauge header for strength and performance.
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O-Rings Included: Ensures tight, leak-free installation right out of the box.
Specifications
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Item ID: 025239
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Type: Expansion Pipe
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Construction: 20/19-Gauge Steel
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Weight: 3.0 lbs.
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Use: Closed Course / Racing
If you're after that classic 2-stroke hit with smoother, stronger power everywhere, the Factory Fatty delivers.