Factory Fatty 021051 KTM-500 XCF-W-2020 We now offer a replacement

We now offer a replacement aluminum inlet sleeve for most models

*Spring not included* Spring kit part #011396*

WLFlow Cooling Technology: Designed to keep you cool in high-performance areas

Forest legal with an updated factory look and sound

The Factory Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band

Factory Fatty 021051 KTM-500 XCF-W-2020 We now offer a replacementThe 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