Description
If you’re running a high-performance machine, your exhaust system is either working for you or against you. The FMF PowerCore 4 HEX Muffler delivers measurable gains in power and torque while maintaining the durability needed for sustained track use or aggressive riding. Its Hi-Flo core design and advanced internal packing material keep backpressure optimized and sound levels reasonable—no compromises required.
Built from stainless steel and aluminum, this is a bolt-on upgrade that handles extreme temperatures and vibration without degradation. Whether you’re chasing lap times or maximizing street performance, this muffler gives you the flow efficiency that translates directly to seat-of-the-pants performance.
- Stainless steel construction
- Aluminum exterior components
- Hi-Flo internal core
- Space Age packing material
- Removable spark arrestor
- Increased power output
- Enhanced torque delivery
- High-flow technology
- Bolt-on installation
- MPN: 041514






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