FMF Factory 4.1 Muffler 041595 1821-2021

Description

• Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps

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• The lightest mufflers available

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• Superior power and performance – horsepower improved throughout the rpm range

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• Feature exclusive proprietary Chamber Core technology

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• Factory Forward Engineering centralizes mass, improves handling

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• Made from premium quality American materials

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• Customize with performance tuning inserts and spark arrestor module

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• Meet AMA sound requirements on most models; inserts available for others