FMF - Powercore 4 Hex Slip-on Muffler (Kawasaki)

FMF – Powercore 4 Hex Slip-On Muffler (Kawasaki)

The FMF Powercore 4 Hex Slip-On Muffler brings race-bred performance and sound to your Kawasaki at a price that makes sense. Designed for closed-course riding, this slip-on is built to boost horsepower and torque across the entire rpm range using FMF’s proven Hi-Flo internal core design. The result? Smoother throttle response, a stronger midrange hit, and a crisp, aggressive exhaust note that transforms how your bike feels on the track or trail.

The Powercore 4 Hex borrows features from FMF’s factory-level exhausts, including an enhanced sonic evacuation system that helps gases exit faster for improved flow and power. The stainless steel mid pipe and aluminum canister keep weight low and durability high, while the Space Age internal packing material maximizes lifespan between repacks. A removable spark arrestor comes standard, making it versatile enough for both track and off-road use.

Why We Like It:
It’s a real performance upgrade that doesn’t break the bank. The sound is crisp without being obnoxious, and the fit and finish are pure FMF — clean welds, tight tolerances, and a factory-level look.

Why It’ll Work for You:
This slip-on gives your Kawasaki more pull everywhere — from easier throttle control to better acceleration out of corners. It’s simple to install, lightweight, and built tough enough to handle seasons of hard riding. Plus, with the included spark arrestor, you’re ready for the track or the trails.

Variants / Options:
Compatible with FMF or stock OEM headers. Works with most modern Kawasaki off-road and dual-sport models.

Key Features:

• Noticeable increase in power and torque across the rpm range
  
  

• Hi-Flo core design for improved airflow and throttle response
  
  

• Durable stainless steel and aluminum construction
  
  

• Space Age internal packing extends service life
  
  

• Enhanced sonic evacuation for better exhaust flow
  
  

• Removable spark arrestor included
  
  

• Compatible with FMF or stock headers
  
  

• Factory-level performance at an affordable price