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2016 Harley Davidson FLSS Softail Slim S

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A custom-fit vehicle-specific sub solution for your FLSS Softail Slim S saves space and offers a finish that is unrivaled.

Overview Upgrade your Speakers Add an Amplifier Digital Sound Processors Audio Installation & Accessories Dads & Grads Sale

Sub Boxes Custom-fit for your 2016 FLSS Softail Slim S for 2016 Harley Davidson FLSS Softail Slim S

A FLSS Softail Slim S custom-fit sub box is the best way to add bass without sacrificing space. You'll get a box that looks and sounds great and matches the factory "look" to a T.  We carry vehicle specific solutions like the NVX BOOST Boxes, JL Audio StealthBoxes, MTX Thunderforms and more.

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Kenwood eXcelon P-HD2R  

2-Speaker Rear Audio Upgrade Kit for select 2014-2023 vehicles from Harley Davidson Includes 6x9" Speakers and 2-Channel Amplifier

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Kenwood eXcelon P-HD2R  

2-Speaker Rear Audio Upgrade Kit for select 2014-2023 vehicles from Harley Davidson Includes 6x9" Speakers and 2-Channel Amplifier

• System includes pair of 6x9" speakers and a 2-channel amplifier
• Designed to fit select 2014-2023 vehicles from Harley Davidson
• System is designed to withstand harsh outdoor environments
• Plug and Play design for easy installation
• Comes with all necessary mounting and installation hardware

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Fits your FLSS Softail Slim S
List price $1500.00
-20% $1,199.00

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• System includes pair of 6x9" speakers and a 2-channel amplifier
• Designed to fit select 2014-2023 vehicles from Harley Davidson
• System is designed to withstand harsh outdoor environments
• Plug and Play design for easy installation
• Comes with all necessary mounting and installation hardware

 
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    FAQ for Custom-fit Subwoofer Boxes & Enclosures in 2016 FLSS Softail Slim S

    Q: Can I upgrade or change the Custom-fit Subwoofer Boxes & Enclosures in 2016 Harley Davidson FLSS Softail Slim S?

    A: Yes this page includes all the best Custom-fit Subwoofer Boxes & Enclosures that work in your FLSS Softail Slim S.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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