FMF Factory Fatty Expansion Chamber (25243)

Part No. 6107730 (025243)
The Factory Fatty is reminiscent of the "works" or cone pipe once used by Factory Teams. It shares many of the same characteristics with its craftsmanship and material quality. The Factory 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 youre looking for.

-Lighter 20 gauge steel used for the body of the pipe.

-19 Gauge steel used for the header portion.

-Includes O-rings on most models

-Hand pounded seams for smooth flow transitions.

-O-Rings Included
To Fit:
KTM 250 EXC TPI 20-22
KTM 250 SX 19-22
KTM 250 XC TPI 20-22
KTM 300 EXC TPI 20-22
KTM 300 XC 2019
KTM 300 XC TPI 20-22
Husqvarna TC250 19-22
Husqvarna TE250i 20-22
Husqvarna TE300i 20-22
Husqvarna TX300 19-20
Husqvarna TX300i 20-22
GAS GAS EC250 21-22
GAS GAS EC300 21-22
GAS GAS MC250 22