FMF PIPE FACT FATTY KTM/HUS - 78-1547FThe FMF Fatty pipe is a direct fit two stroke expansion chamber exhaust built for KTM and Husqvarna riders and it's the go to answer for the FMF Fatty pipe KTM Husqvarna two stroke exhaust search. FMF engineers the Fatty around large diameter expansion chamber geometry that pushes power into the low to mid rev range where you actually use it on the trail or track. Throttle response feels crisp coming out of slow corners, which is exactly where a two