Factory Fatty 024052 YAMAHA-YZ125-1997 The supercross version is designed

The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range

The Powercore 2 is the measure which others aim for

1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory

The kit includes Stainless Steel

the PowerBomb is a "pre-muffler" of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases)

Factory Fatty 024052 YAMAHA-YZ125-1997 The supercross version is designedThe 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