FMF - Powercore 4 Hex Slip-On Muffler (Yamaha)

FMF - Powercore 4 Hex Slip-On Muffler (Yamaha)

Wake your Yamaha up with one of the easiest and most affordable upgrades you can bolt on — the FMF Powercore 4 Hex Slip-On. Designed using the same race-bred technology found in FMF’s pro-level systems, this slip-on delivers real performance gains you’ll feel right away. It boosts horsepower and torque across the range, sharpens throttle response, and gives your bike that deep, throaty FMF sound that always turns heads.

Built from stainless steel and aluminum, the Powercore 4 Hex is tough enough to handle years of riding while keeping weight down. FMF’s Hi-Flo core and enhanced sonic evacuation design keep air moving fast and smooth, improving flow for stronger acceleration and cleaner power delivery. Whether you’re on the track or in the woods, this pipe makes your Yamaha feel like a whole new machine.

Why We Like It:
You get instant results — better throttle snap, more pull through the midrange, and that signature FMF tone without spending big money. It’s a solid, bolt-on performance gain that gives your Yamaha a fresh, factory-style look and sound.

Why It’ll Work for You:
This slip-on adds power where it matters most — off the bottom and into the midrange — giving you more drive out of corners, better control in technical sections, and smoother roll-on power everywhere else. It’s lightweight, durable, and includes a removable spark arrestor, so you can hit the track or trail without a second thought.

Key Features:

• Overall increase in power and torque
  
  

• Durable stainless steel and aluminum construction
  
  

• Space Age internal packing material for maximum longevity
  
  

• Internal Hi-Flo core design for improved airflow
  
  

• Enhanced sonic evacuation for higher flow and increased power
  
  

• Includes removable spark arrestor