FMF Fatty Pipe Exhaust System for Yamaha

The FMF Fatty Pipe exhaust system is a performance expansion chamber (expansion pipe) designed for two-stroke Yamaha off-road motorcycles. It is built to improve engine response and power delivery, and it works with a matching silencer to form a complete exhaust system.

Key Features:

• Expansion chamber with a fat-bodied design that delivers stronger mid-range to top-end power
• Built for off-road riding, with a focus on usable power and throttle response
• Durable metal construction made for the vibration and heat of off-road use
• Precision-formed bends and welds for consistent fit and finish
• Backed by FMF Racing, a long-time supplier of exhaust systems for motocross, off-road and powersports riders

The FMF Fatty Pipe is a popular upgrade for riders who want better engine performance than a stock exhaust provides. Check the individual product listings for the specific model, finish and included components.