2014+ Harley-Davidson Ultra Stage-2 Kit (Gen-3)

SKU HD14U-STG2 Category

The next step in motorcycle performance, our M5 audio kits are the loudest and clearest audio systems we’ve created. Featuring simple plug-and-play installation and paired with freeway speed output all create the best in class on bike audio experience.


Plug-and-Play Design: Designed to work right out of the box. Everything is included to make for easy installation and all to ensure less time in the garage and more time out riding.

Full Throttle Output: Audio engineered to perform on the open road. Speakers and amplifiers specifically tuned and designed to not only overcome wind, road, and exhaust noise, but to give you that second to none audio experience on your bike.

RF3 (Rockford Factory Fit and Finish): Designed and engineered to match and compliment the factory fit and finish of your bike. These components are purpose built to the exact specifications to ensure the best-in-class fitment and look.

Element Ready™: Purpose built for the harsh motorcycle environment. The speakers and amplifier are designed to stand up to water, dirt, UV, and motorcycle vibration, ensuring that your audio system will stand the test of time.

Compatibility Chart: Please review below tab for fitment before purchasing.





The HD14U-STG2 is a high-performance 4-speaker, 800-watt amplified audio system that includes the following:
• (2) 6.5″ fairing speakers
• (2) 6.5″ tour-pak® speakers
• (1) 800W 4-channel amp
• (1) amp installation kit

Upgrade this kit on air-cooled lowers by adding:
• (1) 6.5” lower speakers (see below)

Upgrade this kit to STG3 by adding:
• (1) 6×9” saddlebag speaker kit (see below)

Upgrade this kit to STG5 by adding:
• (1) 6×9” saddlebag speaker kit (see below)
• (1) 10” dual sub kit (see below)

You must flash your factory radio to use this kit. Ready to flash? Here’s a list of dealers that can flash your radio. Refer to our COMPATIBILITY chart to verify fitment before purchasing.



  • Plug and Play design for easy installation
  • No drilling or cutting required
  • Direct connect wiring harnesses for Harley-Davidson® models
  • Kits bolt to factory attachment points
  • M5-800X4: 800-watt 4-channel IPX6 Element Ready™ amplifier
  • TMS65: 6.5″ 2-way Element Ready™ speaker with integrated phase-aligned 25 mm tweeter
  • Speakers custom tuned to hear music over wind, road & exhaust noise at highway speed
  • RFK-HD14M5: Amp install kit for M5-800X4 on 2014+ Harley-Davidson® models
  • Y-adaptors included in amp install kit supports expansion of lower fairing, saddlebag, or Tour-Pak® speakers
  • T-harness integration supports front/rear fader control (requires “Rockford Fosgate 2014+ All Bikes” flash)
  • T-harness features loop-thru for Digital Signal Processor (DSR1 sold separately)
  • 90-degree harness included with amp install kit for Road Glide® installations
  • Factory Harley-Davidson® radio must be flashed to use this kit
  • Quality & Performance tested using proprietary RATS (Rockford Automated Testing System)
  • Klippel Verified certification program delivers the best possible loudspeakers
  • 2-Year Warranty


Speaker Qty
Amplifier Type
Total Power
800 Watts
Grille/Trim Ring Included
Mounting Hardware
Included In The Box
(2 pr) TMS65
(1 ea) M5-800X4
(1 ea) RFK-HD14M5
Shipping Weight




YES Compatible!Model IS compatible


NOT Compatible!Model NOT compatible


Model NOT producedModel not produced this year



BOOM! Box 4.3BOOM!™ Box 4.31


BOOM! Box 6.5GTBOOM!™ Box 6.5GT1




H-D Tour-PakH-D® Tour-Pak

The HD14-STG2HD14-STG3, and HD14-STG5 are better equipped for these models.
MODEL CHASSIS 2014 2015 2016 2017 2018 2019 2020 2021 2022
Electra Glide RevivalElectra Glide® Revival FLH X
Electra Glide StandardElectra Glide® Standard NR FLHT X X X X
Road GlideRoad Glide® FLTRX X X X X X X X X
Road Glide STRoad Glide® ST FLTRXST X
Road Glide SpecialRoad Glide® Special FLTRXS X X X X X X X X
Street GlideStreet Glide® FLHX X X X X X X X X X
Street Glide STStreet Glide® ST FLHXST X
Street Glide 115th AnniversaryStreet Glide® 115th Anniversary FLHXANV X
Street Glide SpecialStreet Glide® Special FLHXS X X X X X X X X X
Street Glide Special 115th AnniversaryStreet Glide® Special 115th Anniversary FLHXSANV X
The HD14RK-STAGE2 is better equipped for these models.
MODEL CHASSIS 2014 2015 2016 2017 2018 2019 2020 2021 2022
CVO Road KingCVO Road King® FLHRSE X
CVO Softail DeluxeCVO Softail Deluxe FLSTNSE X X
Road KingRoad King® FLHR X X X X X X X X
Road King ClassicRoad King® Classic FLHRC X X X X X X
Road King SpecialRoad King® Special FLHRXS X X X X X X
MODEL CHASSIS 2014 2015 2016 2017 2018 2019 2020 2021 2022
Road Glide LimitedRoad Glide® Limited FLTRK
Road Glide UltraRoad Glide® Ultra FLTRU
Ultra ClassicElectra Glide® Ultra Classic® FLHTCU
Ultra Classic Twin-CooledElectra Glide® Ultra Classic® Twin-Cooled FLHTCU
Ultra Classic LowElectra Glide® Ultra Classic® Low FLHTCUL
Ultra Classic Low Twin-CooledElectra Glide® Ultra Classic® Low Twin-Cooled FLHTCUL
Ultra LimitedUltra Limited FLHTK
Ultra Limited 115th AnniversaryUltra Limited 115th Anniversary FLHTKANV
Ultra Limited LowUltra Limited Low FLHTKL
Ultra Limited Shrine EditionUltra Limited Shrine Edition FLHTK
The HD14CVO-STG2 is better equipped for some incompatible models in this section.
MODEL CHASSIS 2014 2015 2016 2017 2018 2019 2020 2021 2022
CVO Ultra LimitedCVO Ultra Limited FLHTKSE
CVO Limited 115th AnniversaryCVO Limited 115th Anniversary FLHTKSEANV
CVO Pro Street BreakoutCVO Pro Street Breakout FXSE X X
Road GlideCVO Road Glide® FLTRXSE X X X XRF2 XRF2
CVO Road Glide LimitedCVO Road Glide® Limited FLTRKSE XRF1
CVO Road Glide UltraCVO Road Glide® Ultra FLTRUSE
CVO Softail BreakoutCVO Softail Breakout FXSBSE X
CVO Street GlideCVO Street Glide® FLHXSE X X X X X X XRF2 XRF2
MODEL CHASSIS 2014 2015 2016 2017 2018 2019 2020 2021 2022
FreewheelerFreewheeler®NR FLRT X X X X X X X X
Tri Glide UltraTri Glide® Ultra Classic® FLHTCUTG
Tri Glide Ultra 115th AnniversaryTri Glide® Ultra 115th Anniversary FLHTCUTGANV

GRAY TEXT indicates nomenclature used on some early models and later inherited.
1 Factory Radio from Harley-Davidson® must be flashed. Read advisory for more information.
2 H-D® Power Lock for touring luggage not compatible with 6×9″ bag-lid kit.
3 Saddlebags must be factory Harley-Davidson® ABS plastic to insure proper fitment with bag-lid and subwoofer kits. Fiberglass saddlebags and bag-lids not compatible.
4 Stretched Saddlebags not optimized for kits with subwoofers. Contact technical support for suggested harness brace.
5 Tour-Pak® must be detached in order to install and remove subwoofer enclosures.
NR No Radio equipped from factory. Motorcycle has storage pocket in lieu of infotainment unit.
RF1 RF Stage-1: Not upgradable. Factory equipped with “Harley-Davidson Audio Powered by Rockford Fosgate” 2-way speakers and saddlebag amplifier.
RF2 RF Stage-2: Not upgradable. Factory equipped with “Harley-Davidson Audio Powered by Rockford Fosgate” 3-way speakers and saddlebag amplifier.

— Harley-Davidson®, H-D®, Road King®, Road Glide®, Street Glide®, Ultra Classic®, Tri Glide®, Freewheeler®, and Tour-Pak® are Registered Trademark of Harley-Davidson USA, Inc.
— Boom!™ is a Trademark of Harley-Davidson USA, Inc.