FMF Power Core 4 Mufflers US Forest approved
The PowerCore4 is constructed from an extruded aluminum canister, a stainless steel mid pipe that is MIG/TIG welded and has space age internal packing.
It uses Hi-Flo square perforated core for optimum flow.
The modular rear end cap gives you the option to run it without a US Forest approved spark arrestor screen for closed course competition; a 1-3/4" end cap insert to smooth out the power or our Quiet-Core insert to drop the sound level considerably.
The PowerCore4 delivers an all around power increase and shaves off pounds when compared to stock OEM steel exhausts.
When you're looking for the performance increase that a Factory race muffler provides, but don't want to spend the money for a higher priced titanium unit, the FMF PowerCore4 is the muffler of choice.