FMF - Powercore 4 Muffler (Kawasaki)

FMF - Powercore 4 Muffler (Kawasaki)

FMF built the Powercore 4 Muffler to give Kawasaki riders an easy, affordable way to unlock more performance. Borrowing tech from FMF’s high-end race exhausts, the Powercore 4 delivers noticeable gains in torque and horsepower while keeping the build simple, durable, and budget-friendly. It’s the kind of upgrade you feel immediately — more snap off the bottom, stronger pull through the midrange, and that clean FMF tone that just sounds right.

Made from stainless steel and aluminum, this muffler can take a beating without weighing you down. The design focuses on smooth flow and longevity, with advanced packing material that keeps performance consistent ride after ride. Whether you’re racing, training, or trail riding, the Powercore 4 adds power you can actually use — without draining your wallet.

Why We Like It:
It’s one of those bolt-on mods that just works. The throttle feels more responsive, the bike pulls harder out of corners, and the sound is aggressive but controlled. It’s dependable FMF performance in a simple, durable package.

Why It’ll Work for You:
This muffler improves airflow through the engine, giving you stronger low-end torque for starts, climbs, and acceleration, plus smoother midrange power when you’re on the gas. It’s made from rugged materials to last through rough conditions and includes a removable spark arrestor so you can ride almost anywhere. It’s practical performance — no tuning headaches, no noise issues, just real gains where you ride most.

Key Features:

• Overall increase in power and torque
  
  

• Durable stainless steel and aluminum construction
  
  

• Advanced packing material for maximum longevity
  
  

• Champagne-colored anodized canister
  
  

• Removable spark arrestor included
  
  

• Optional 96dB quiet insert available