fit:2004 Harley-Davidson FLSTFI Fat Boy

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  • K&N Filters 57-1137S FIPK air intake system components
    SKU: 57-1137S

    Enhance your motorcycle’s performance with the K&N Filters 57-1137S FIPK air intake system, featuring a high-flow air filter and aluminum intake tube.

  • K&N Filters KN-171B Performance Oil Filter for Powersports
    SKU: KN-171B

    The K&N KN-171B Performance Oil Filter offers high oil flow and engine protection, built with premium synthetic filter media for long-lasting performance.

  • K&N RK-3953S Street Metal Air Intake System with high-flow air filter
    SKU: RK-3953S

    Upgrade your ride with the K&N RK-3953S Street Metal Air Intake System, featuring an oversized air filter and high-volume cast aluminum housing.