This product has been discontinued
FMF Racing Quiet Core Insert for PowerCore 4 - 040171 Item # 227031
Description
Give FMF Quiet Core inserts a go if you're looking to take some of the bark out of your loud FMF exhaust, but don't want to risk power loss! These high-quality tunable exhaust tips are U.S. forestry-compliant and allow for increased power, but with low sound output.