FMF KTM 65SX 16-23 TC65 '17-23 FATTY PIPE 25197FMF KTM 65SX 16 23 TC65 '17 23 FATTY PIPE 25197 Our Fatty Gold Series pipe broadens the powerband and provides a healthy power increase everywhere. Improved throttle response, a linear powerband and enhanced over rev all add up to a pipe that everyone will benefit from. The Fatty pipe is our most popular pipe for that same reason. If youre riding trails, tracks or in the open desert, this pipe has what youre looking for. Number one pipe on the market.