FMF Factory Fatty Pipe – Yamaha YZ125/YZ125X (2022–2026)
All-around power everywhere. The FMF Factory Fatty delivers broad, usable power gains across the entire RPM range—electro-nickel plated for durability and that signature FMF performance that's dominated championships for decades.
The FMF Factory Fatty Pipe (024077) is designed for riders who want power everywhere. Electro-nickel plated finish won't chip or discolor, while precision-engineered expansion chamber design boosts horsepower and torque from bottom to top. Whether you're hitting tight woods or wide-open tracks, the Fatty delivers usable power when you need it. Compatible with FMF Powercore silencers for maximum performance.
What's Included
- FMF Factory Fatty Pipe – electro-nickel plated
- Mounting hardware and springs
Key Features
- All-Around Power Increase – gains throughout entire RPM range
- Electro-Nickel Plated Finish – non-chip, won't discolor
- Broad Powerband – usable everywhere, not peaky
- FMF Championship Engineering – decades of race-proven performance
- Durable Construction – built to handle race abuse
- Works with Stock or Aftermarket Silencers – versatile compatibility
- Precision Welded – leak-free operation
Fitment
- 2022–2026 Yamaha YZ125
- 2022–2026 Yamaha YZ125X
- 2022–2023 Yamaha YZ125 Monster Energy RE
Install Notes
- Direct bolt-on replacement for stock pipe
- Installation time: 1–2 hours
- Basic mechanical skill required
- May require jetting adjustment for optimal performance
- Recommended pairing: FMF Powercore II Silencer
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.