FMF - Factory Fatty Pipe (Yamaha)

FMF - Factory Fatty Pipe (Yamaha)

FMF built the Factory Fatty Pipe for riders who want that old-school factory feel — raw power, clean response, and a sound that hits deep. Inspired by the original “works” cone pipes from pro race teams, this one brings that same hand-built race-shop quality straight to your Yamaha two-stroke. It looks, feels, and runs like something straight off a factory bike.

Made from lightweight 20-gauge steel with a 19-gauge header section, every Factory Fatty is hand-pounded and perfectly shaped to smooth exhaust flow and boost performance across the board. You’ll feel stronger pull right off the bottom, cleaner midrange, and more over-rev when you stay in it. No matter if you’re moto racing, trail riding, or just chasing buddies around the track — this pipe delivers that crisp, aggressive FMF powerband everyone’s after.

Why We Like It:
It’s that perfect blend of sound and snap. The Factory Fatty gives your Yamaha that classic two-stroke bark, but with more usable power everywhere. It makes the bike feel alive — like the motor’s breathing better and begging to be ridden harder.

Why It’ll Work for You:
If you’re new to upgrading pipes, this one’s an easy win. You’ll feel a smoother hit when you roll on the throttle, better pull through the mid, and a cleaner rev up top. Plus, it’s built tough enough to handle crashes and deep ruts without folding. It’s one of those upgrades that instantly makes your bike more fun to ride.

Variants / Options:
Available for a wide range of Yamaha two-stroke models. Direct bolt-on fitment with FMF quality and finish.

Key Features:

• Inspired by FMF “works” cone pipes used by factory teams
  
  

• Broadens and smooths the power curve across the rev range
  
  

• More low-end torque, stronger mid, and better over-rev
  
  

• 20-gauge steel body, 19-gauge steel header
  
  

• Hand-pounded seams for smoother exhaust flow
  
  

• Lightweight, race-proven FMF construction