If anything the fatty is a mid-top pipe like a T5 or the old Gold series. The Gnarly and the SST are fmf's current trail pipes. Nobody runs them, hence no one knows about them, and they never get talked about. A pipe that sees 9,500+ rpm is not a trail pipe. a pipe that peaks at 8,000-8,900 rpm is going to be at max a great low-mid pipe. The best trail pipe fmf ever made was the old school woods pipes. They made awesome low end power. So no, the fatty is not a trail pipe, nor is it an all around pipe. You can't build a pipe for a 2 stroke that covers all ranges. You would have to have a reactive adjustable power valve and an on the fly adjustable pipe.