The FMF PowerCore 4 HEX Slip-On Muffler is built to improve exhaust flow for an overall increase in power and torque. Durable stainless steel and aluminum construction plus long-life internal packing make it a strong upgrade for off-road riding.
Upgrade your bike with higher flow and stronger performance. The FMF PowerCore 4 HEX Slip-On Muffler is designed to deliver an overall increase in power and torque by improving exhaust flow and internal evacuation. Built from durable stainless steel and aluminum, it’s made to handle demanding off-road use while keeping weight and performance in check. Long-life internal packing helps maintain consistent performance over time, so you can ride harder with less frequent servicing.
If you’re looking for a slip-on that improves response and helps your engine breathe more efficiently, the PowerCore 4 HEX is a proven solution—ideal for riders who want more usable power and a robust, track- and trail-ready build.