Factory Fatty Expansion Chamber Head Pipe - For 05-21 Yamaha YZ125

For 05-21 Yamaha YZ125

• Material: Steel
• Type: Exhaust Header

• More tractable power, improved throttle control
• Provides power gains throughout entire power band
• FMF Racing's Tru-Flo stamping process ensures a perfect fit and optimum performance.
• Can be used with FMF or stock silencer
• Our most popular 2-stroke pipe
• O-Rings Included

With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance. The Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-rev. No matter what type of riding you do, the Fatty has the benefits you're looking for.