FMF KTM 85 SX'06-17/XC'08-09/KTM 105 SX TC85 14-17 FATTY-PIPE 25088FMF KTM 85 SX'06 17 XC'08 09 KTM 105 SX TC85 14 17 FATTY PIPE 25088 With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance. The 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. More tractable power, improved