Upgrade your 2-stroke bike with the legendary FMF Factory Fatty exhaust pipe, engineered for riders who want maximum performance, smoother power delivery, and a true factory racing look.
Inspired by the classic factory works pipes used by professional race teams, the Factory Fatty is designed to broaden and smooth out the power curve across the entire RPM range. It delivers more low-end torque, stronger mid-range power, and improved over-rev, making the bike easier to ride while noticeably increasing performance. FMF specifically confirms gains across the entire power band.
Constructed from lightweight 20-gauge steel, it combines excellent durability with low weight and the unmistakable raw factory finish.
Features
- Premium FMF Factory Fatty expansion chamber
- Improved low-end torque
- Stronger mid-range power
- Better over-rev
- Smoother throttle response
- Lightweight 20-gauge steel construction
- Factory race look
- Ideal for 2-stroke motocross and enduro bike
Fitment:
- 125 SX 2025 (Europa)
- 150 SX 2025 (Europa)
Important: This exhaust pipe is not road legal and is intended for racing use only.
Use only on private property or closed tracks.
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