FMF FACTORY FATTY 85CC 2017 & OLDER, 105CC 2012 & OLDERMake Model Year HUSQVARNA TC 85 14 17 KTM 105SX 07 12 KTM 105XC 08 12 KTM 85 SX 06 17 KTM 85XC 08 09 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

GasGas MC65     2021+

Husqvarna TC50    2017-2023

HUSQVARNA TC65    2020-2021

with improved braking performance in harsh conditions

KTM 50SX MINI                    2009-2011

KTM SX65                 2015+

HUSQVARNA TC65   2023-2025

KTM SX-E 3                     2023-2024

GASGAS MC E-3

BIKEs                         Years

65cc                        2009+

Due to the wide variety of switches