FMF Yamaha Fatty Performance Exhaust System for Yamaha

FMF Fatty Pipe: Dominant Performance Exhaust

Engineered to redefine two-stroke power delivery, the FMF Fatty Pipe stands as an industry benchmark—revered by motocross champions and trail enthusiasts alike. Unlike generic exhausts, each model undergoes precision computer-aided design and dyno validation, tailoring torque curves specifically for your bike’s engine. The result? Unmatched throttle response from idle to redline.

Why Riders Choose the Fatty:
– Uncompromised Build: Forged from heavyweight 19-gauge American steel with corrosion-resistant nickel plating—survives mud, rocks, and relentless weather while staying showroom-clean.
– Tru-Flo® Precision: Laser-cut flanges and mandrel bends eliminate air turbulence, boosting horsepower and fuel efficiency across all RPMs.
– Rider-First Versatility: Whether carving SX tracks or conquering mountain singletracks, it adapts seamlessly to amateur playrides or pro-level racing.

Performance Comparison
| Feature | FMF Fatty Pipe | Standard Pipes |
|——————|——————————-|——————————|
| Power Band | Linear gains (low-mid-high) | Peak-focused only |
| Durability | Nickel-plated US steel | Basic chromed sheet metal |
| Fitment Accuracy | Bolt-on perfection | Frequent modification needed |
| Terrain Mastery | Optimized for track/trail/enduro| Limited versatility |

Trusted by champions worldwide, this exhaust transforms any ride—delivering explosive acceleration for holeshots while maintaining trail-friendly control. Elevate your engine’s voice and vanquish bottlenecks with motocross’s most imitated performance legend.

Compatibility Note: Model-specific designs available for Yamaha YZ, Honda CR, KTM SX, and Suzuki RM series.