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Factory4.1C SL (Carbon slip-on)

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By giving the Factory 4.1 a carbon fiber shell, we made the world's best peforming exhaust the world's lightest exhaust. The Factory 4.1 Carbon utilizes the same cutting edge technology as the titanium version. Thuis exhaust doesn't just look Factory-it feels Factory. If you want the lightest and best performing exhaust available, the Factory 4.1 C is for you.