When designing the PowerCore 4, FMF looked at their top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank.
Overall increase in power and torque.
Durable stainless steel and aluminum construction.
Space Age internal packing material for maximum longevity.
Hi-Flo modular end cap.
Internal shape of core uses Hi-Flo technology.
Enhanced sonic evacuation provides for higher flow and increased power.
Includes removable (most models) spark arrestor.
Optional 96dB quiet insert available (sold separately).
Note: For closed course competition use ONLY. Not intended for street use.