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2007-2017 Harley-Davidson Softail Fat Boy EFI FLSTFI - -
mount with existing hardware
If performance is your priority
75" on centers
Smooth chrome housing with diamond-style clear lens and reflector optics
FMF Factory 4.1 Muffler 041593 1821-2019 Swingarm Isolator Mount 2007-2017 Harley-Davidson Softail Fat BoyThe lightest mufflers available Superior power and performance horsepower improved throughout the rpm range Feature exclusive proprietary Chamber Core technology Factory Forward Engineering centralizes mass, improves handling Made from premium quality American materials Customize with performance tuning inserts and spark arrestor module Meet AMA sound requirements on most models; inserts available for others