Pro Circuit Headpipe Steel For Yamaha WR250F 4Y07250WRH

Constructed from thick 18 gauge steel, the Gnarly was made specifically for those who ride in the roughest terrain and require the strongest, most reliable equipment. The performance of the Gnarly is focused toward a strong low end with meaty midrange to provide the torque and tractability of a 4-stroke but still maintaining the responsiveness of a 2-stroke. The Gnarly is the preferred pipe for Enduro and GNCC riders where abrupt power and rugged durability is a must.

Constructed from thick 18 gauge steel, the Gnarly was made specifically for those who ride in the roughest terrain and require the strongest, most reliable equipment. The performance of the Gnarly is focused toward a strong low end with meaty midrange to provide the torque and tractability of a 4-stroke but still maintaining the responsiveness of a 2-stroke. The Gnarly is the preferred pipe for Enduro and GNCC riders where abrupt power and rugged durability is a must.

The Fatty Gold Series pipe is the cornerstone of FMF's history. With over 35 years of experience behind it, FMF's Fatty Pipe is the industry benchmark. Their philosophy is simple - Give you more power. More at the crack of the throttle, more in the meaty part of the powerband, and more over the top. The Fatty is a symbol of FMF's heritage and dedication to performance.

Conical or cylindrical link pipe is made of stainless steel or titanium; shape is determined on the basis of tests of the connection of the link pipe with the muffler to obtain maximum performance increase Joint of the inlet cap is milled on a state-of-the-art CNC machine and connected by high-quality silicon-shielded tempered springs Please Note: The image displayed is representative of the item, but may vary depending on your specific model.

Bolting on a Factory Fatty will enhance the powerband throughout the range. With increased horsepower and torque, you will not be sacrificing power to gain that factory look and feel. This is the same pipe many of the top supercross and motocross riders are using today.

The Fatty Gold Series pipe is the cornerstone of FMF's history. With over 35 years of experience behind it, FMF's Fatty Pipe is the industry benchmark. Their philosophy is simple - Give you more power. More at the crack of the throttle, more in the meaty part of the powerband, and more over the top. The Fatty is a symbol of FMF's heritage and dedication to performance.