The FMF Powercore 4 Slip-On Muffler is a lightweight 4-stroke exhaust upgrade designed to improve flow and boost overall performance. Featuring hi-flo technology, durable materials and a removable spark arrestor, it’s built for hard off-road use.
The FMF Powercore 4 Slip-On Muffler is a proven performance upgrade for 4-stroke off-road bikes, designed to increase exhaust gas flow for stronger power delivery. Its computer-designed and dyno-tested construction helps your engine breathe more efficiently, improving overall response while keeping the setup lightweight and durable for track and trail use.
If you want an exhaust that’s built to last and delivers real gains without the complexity of a full system, the Powercore 4 slip-on is an ideal solution. With FMF’s internal packing designed for longevity and maximum sound dispersion, plus the option to add a Quiet Core insert, you can tailor the setup to your riding needs.