The FMF PowerCore 4 HEX Slip-On Muffler is a performance-focused exhaust upgrade designed to deliver an overall increase in power and torque while improving exhaust flow. With its Hi-Flo core design and enhanced sonic evacuation, it helps your engine breathe more efficiently for stronger, more responsive riding. Built from durable stainless steel and aluminum and packed with long-life internal material, it’s made to handle hard off-road use and keep performing over time.
If you want a slip-on that’s easy to fit, built to last, and engineered for measurable performance gains, the PowerCore 4 HEX is a proven choice for motocross and off-road riding.
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:
🔹 Higher-flow exhaust design helps unlock stronger performance across the range
🔹 Long-lasting internal packing reduces the need for frequent servicing
🔹 Removable spark arrestor adds flexibility for riding areas that require it
Technical specifications (if needed):
📌 Brand: FMF
📌 Model: PowerCore 4 HEX
📌 Type: Slip-On Muffler
📌 End cap material: Stainless steel
📌 Muffler material: Aluminum
📌 Pipe material: Stainless steel
📌 Finish/Color: Raw
📌 Weight: 2.41 kg (5.3 lb)
📌 Includes: Removable spark arrestor
📌 Note: Will not pass 2025 FIM sound regulation
Why choose this product?
⭐ FMF is a respected exhaust brand known for real-world off-road performance
⭐ Built with durable materials and longevity-focused packing for reliable use
⭐ A straightforward slip-on upgrade that improves flow and performance without a full system
