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.
Features:
More tractable power, improved throttle control
Provides power gains throughout entire power band
Carbon steel with a nickel plated finish for maximum durability
FMF Racing’s Tru-Flo stamping process ensures a perfect fit and optimum performance.
Can be used with FMF or stock silencer (unless noted)
Our most popular 2-stroke pipe 
O-Rings Included
 
Bike fitment:
Yamaha YZ250 1999
Yamaha YZ250 2000
Yamaha YZ250 2001
Yamaha YZ250 2002
Yamaha YZ250 2003
Yamaha YZ250 2004
Yamaha YZ250 2005
Yamaha YZ250 2006
Yamaha YZ250 2007
Yamaha YZ250 2008
Yamaha YZ250 2009
Yamaha YZ250 2010
Yamaha YZ250 2011
Yamaha YZ250 2012
Yamaha YZ250 2013
Yamaha YZ250 2014
Yamaha YZ250 2015
Yamaha YZ250 2016
Yamaha YZ250 2017