Customer Reviews
FMF Powercore IV Modular Quiet Core Insert FMF - Powercore IV Modular Quiet Core Insert
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Fit   4.0
Finish   4.0
Durability   3.0
Features   3.0
Cost Benefit   5.0
Overall   3.8
Libor Mahopac,  NY FMF - Powercore IV Modular Quiet Core Insert It helps to lower noise, but not rapidly.
Fit   5.0
Finish   5.0
Durability   5.0
Features   5.0
Cost Benefit   5.0
Overall   5.0
Greg Alderete Steilacoom,  British Co Quiet Core Simple to install and reduced the volume to the point where I can ride without fear of unnecessary volume.
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