The FMF PowerCore 4 HEX Slip-On Muffler is designed for riders who want a noticeable increase in power and torque without the hassle of a full exhaust replacement. Its Hi-Flo core design and enhanced sonic evacuation improve exhaust flow, helping your bike pull harder and respond faster across the rev range. With durable stainless steel and aluminum construction, it’s built to withstand demanding motocross and off-road riding conditions.
If your current exhaust feels restrictive, heavy, or tired, this slip-on is an effective upgrade to restore performance and add a more aggressive, race-ready character—while still keeping serviceability in mind thanks to long-life internal packing materials.
Key features:
✅ Overall increase in power and torque
✅ Durable stainless steel and aluminum construction
✅ Space Age internal packing material for maximum longevity
Benefits of use:
🔹 Improved exhaust flow for stronger performance compared to restrictive stock mufflers
🔹 Long-lasting materials and packing help reduce the need for frequent servicing
🔹 Removable spark arrestor adds versatility for different riding areas and requirements
Technical specifications (if needed):
📌 Brand: FMF
📌 Model: PowerCore 4 HEX
📌 Type: Slip-On Muffler
📌 Muffler material: Aluminum (raw finish)
📌 Pipe/end cap material: Stainless steel
📌 Spark arrestor: Removable (included)
📌 Vendor part number: 044441
📌 Note: Will not pass 2025 FIM sound regulation
Why choose this product?
⭐ Proven FMF performance upgrade focused on power, torque and flow
⭐ Built for durability with stainless steel and aluminum construction
⭐ Practical choice for riders who want a high-performance slip-on with included spark arrestor
