Upgrading your Subaru’s sound system does not have to mean a full audio overhaul. The right replacement speakers for Subaru Forester models can improve clarity, volume, and overall balance while keeping installation simple.
This roundup focuses on practical options for factory-style fitment, better front-stage performance, and reliable OEM-compatible upgrades across multiple Forester years.
Best 10 Replacement Speakers for Subaru Forester Picks for 2026
Front Door Upgrade Kit
KICKER 6x9 Speakers for Subaru Forester 2019-2024
- Includes speakers, adapters, and harnesses
- Made for Forester 2019-2024 front doors
- Plug-and-play install with no cutting
Best For: Forester owners who want an all-in-one front door upgrade
Speaker Spacer Rings
RED WOLF 6.5 Inch Adapter Brackets
- For select Forester 2008-2018 front doors
- Supports 6.5-inch aftermarket speakers
- No cutting or drilling required
Best For: Drivers who need a front-door adapter for aftermarket speakers
OEM Stock Replacement
Pioneer TS-F1634R 6.5-Inch 2-Way Speakers
- Standard 6.5-inch 2-way coaxial pair
- 88dB sensitivity for efficient output
- Good for general OEM-style replacement
Best For: Budget-friendly shoppers who want a simple speaker pair
Factory Tweeter Add-On
Subaru Genuine Kicker Tweeter Kit
- OEM-style tweeter upgrade kit
- Fits select Forester model years
- Improves high-frequency detail only
Best For: Drivers who want a factory-style tweeter upgrade
Rear Door Replacement
Harmony Audio Forester 2005-2008 Rear Door Speakers
- Fits Subaru Forester 2005-2008 rear doors
- 4-inch coaxial factory replacement style
- Designed for stereo car door mounting
Best For: Rear-door factory replacement on a 2005-2008 Forester
Genuine OEM Upgrade
Subaru Kicker OEM 6.5-inch Speaker Kit
- Genuine Subaru OEM speaker kit
- 6.5-inch coaxial design with enhanced clarity
- Improves high-frequency response and stereo imaging
Best For: Factory-style sound upgrade for compatible Subaru models
Front Door Replacement
Harmony Audio Forester 1998-2004 Front Door Speakers
- Fits Subaru Forester 1998-2004 front doors
- 4-inch factory replacement speaker
- Direct car door mounting focus
Best For: Front-door replacement on a 1998-2004 Forester
OEM Tweeter Upgrade
- Genuine Subaru OEM tweeter kit
- Improves higher-frequency response
- Includes installation hardware
Best For: Compatible Subaru owners wanting a factory-style tweeter replacement
Rear Door Value Kit
- Includes speakers, harnesses, and adapters
- Fits Subaru Forester 2019-2024
- Plug-and-play rear-door install
Best For: Forester drivers upgrading rear doors with an easy all-in-one kit
Front Door Bass Upgrade
- 6x9 CS Series 3-way speakers
- Includes adapters and harnesses
- Fits Forester 2019-2024 front doors
Best For: Forester owners seeking a front-door upgrade with stronger full-range output
Front Door Upgrade Kit – KICKER 6×9 Speakers for Subaru Forester 2019-2024
If you want replacement speakers for Subaru Forester that are closer to a true plug-and-play upgrade, this KICKER bundle keeps the process simple. It combines DS Series 6×9-inch 3-way speakers with matching adapters and harnesses, so you can swap the factory front doors without cutting.
Best For: Forester owners who want an all-in-one front door speaker upgrade with included fitment hardware.
Pros:
- Includes the speakers, adapters, and harnesses in one package
- Designed for Subaru Forester 2019-2024 compatibility
- 3-way DS Series design aims for full-range sound with high sensitivity
- Plug-and-play installation helps avoid cutting
Cons:
- Front-door only package, not a full vehicle speaker set
- Specific to Forester 2019-2024 fitment
- Bundle is larger and heavier than simple speaker-only options
This is a practical choice if you value convenience as much as sound quality. The included mounting pieces reduce guesswork, making it easier to move from factory speakers to a matched front-door setup.
Speaker Spacer Rings – RED WOLF 6.5 Inch Adapter Brackets
If you are building replacement speakers for Subaru Forester, the right adapter can matter as much as the speaker itself. This RED WOLF spacer ring kit is meant to let compatible Forester models accept 6.5-inch aftermarket speakers using the existing mounting points.
Best For: Drivers who already chose aftermarket 6.5-inch speakers and just need the correct front-door adapter.
Pros:
- Fits select Subaru Forester models from 2008-2018
- Designed for 6.5-inch aftermarket speaker installation
- ABS plastic construction is more durable than MDF or wood mounts
- Uses existing vehicle mounting points with no cutting or drilling
Cons:
- Adapter only, no speakers included
- Compatibility is limited to specific Subaru applications
- Requires checking vehicle fitment before ordering
This is a useful support part when you want a cleaner install and better speaker fitment. For Forester shoppers pairing aftermarket drivers with factory locations, it helps bridge the gap without extra fabrication.
OEM Stock Replacement – Pioneer TS-F1634R 6.5-Inch 2-Way Speakers
For shoppers comparing replacement speakers for Subaru Forester, this Pioneer pair is a straightforward stock-style option. The TS-F1634R uses a standard 6.5-inch size, 2-way coaxial design, and 4-ohm impedance, making it an easy fit conceptually for OEM-power setups.
Best For: Budget-minded upgrades where you want a simple, efficient replacement speaker pair.
Pros:
- Standard 6.5-inch sizing works with many vehicle door openings
- 2-way coaxial design supports balanced sound and smooth treble
- 88dB sensitivity helps with clearer output from lower power inputs
- 200W max rating gives some headroom for everyday listening
Cons:
- No Subaru-specific adapters or harnesses included
- May require separate mounting parts for Forester installation
- Sold as a general-fit speaker pair rather than a vehicle bundle
This is the simplest option in the group if you want a traditional replacement speaker instead of a vehicle-specific kit. It makes the most sense when you already have the fitment pieces or are comfortable sourcing them separately.
Factory Tweeter Add-On – Subaru Genuine Kicker Tweeter Kit
Subaru Genuine Tweeter Kit Kicker WRX STi Forester Crosstrek Impreza H631SFJ101
Check Price On AmazonIf your goal is to improve clarity rather than replace the main door speakers, this genuine Subaru tweeter kit is a targeted upgrade. It is listed for compatible Forester model years and is designed as an OEM-style tweeter solution for Subaru vehicle audio systems.
Best For: Owners who want a factory-style tweeter upgrade for clearer high frequencies.
Pros:
- Genuine Subaru tweeter kit with Kicker branding
- Compatible with select Forester, Crosstrek, Impreza, WRX, and STI models
- OEM-style fitment is aimed at vehicle audio systems
- Small 0.75-inch tweeter format for high-frequency detail
Cons:
- Not a full speaker replacement kit
- Compatibility is limited to specific model years
- Only addresses tweeter duties, not bass or midrange
This is a focused choice for drivers who want sharper top-end sound without replacing the whole system. It works best as a complement to existing door speakers rather than a standalone full-range solution.
Rear Door Replacement – Harmony Audio Forester 2005-2008 Rear Door Speakers
If you’re looking for replacement speakers for Subaru Forester models from 2005-2008, this Harmony Audio set is aimed at the rear door factory location. It uses 4-inch coaxial speakers designed as a direct-fit style option for a simple factory replacement.
Best For: Drivers who want a rear door factory replacement for a 2005-2008 Forester with a 4-inch speaker size.
Pros:
- Made for Subaru Forester 2005-2008 rear door replacement use.
- 4-inch speaker size matches the supplied fitment details.
- Coaxial design keeps the setup straightforward.
- Built for car door mounting and stereo output.
Cons:
- Rear-door application only, not a full vehicle speaker kit.
- No waterproof rating is listed.
This is a practical pick if you need a targeted rear-door replacement rather than a broader audio upgrade. The fitment-specific design is the main selling point here.
Genuine OEM Upgrade – Subaru Kicker OEM 6.5-inch Speaker Kit
When comparing replacement speakers for Subaru Forester shoppers, this Subaru speaker upgrade kit stands out as a genuine OEM option for drivers who want a factory-style upgrade. The supplied notes show it is a 6.5-inch speaker kit with enhanced high-frequency response and improved stereo imaging beyond stock.
Best For: Subaru owners who want a genuine OEM 6.5-inch speaker upgrade with clearer high-end detail.
Pros:
- Genuine Subaru speaker kit with OEM branding.
- Enhanced high-frequency response and improved stereo imaging.
- 6.5-inch coaxial design with 195 watts maximum output listed.
- Compatible with listed Subaru models including Impreza, WRX/STi, and Crosstrek.
Cons:
- Fitment list does not include Forester in the supplied notes.
- Single-item kit, so it may not cover a full vehicle upgrade by itself.
This is best viewed as a factory-backed sound upgrade rather than a universal replacement. If your goal is better clarity and a genuine OEM part, it offers a focused, easy-to-understand option.
Front Door Replacement – Harmony Audio Forester 1998-2004 Front Door Speakers
If you need replacement speakers for Subaru Forester front doors, this Harmony Audio option is built for 1998-2004 models. The supplied notes describe it as a factory replacement speaker set with a 4-inch size and a front-door fitment focus.
Best For: Owners of a 1998-2004 Forester who need a front door factory replacement speaker.
Pros:
- Fits Subaru Forester 1998-2004 front door factory replacement use.
- 4-inch speaker size is clearly specified.
- Made for direct door mounting in a car.
Cons:
- Front-door fitment only, not a full-speaker solution.
- Very limited feature detail is provided in the notes.
This is a straightforward choice if your priority is matching the original front-door location on an older Forester. It keeps the decision simple by focusing on fitment first.
OEM Tweeter Upgrade – Subaru Genuine Tweeter Kit
If you’re looking for replacement speakers for Subaru Forester models that need a simple factory-style tweeter refresh, this genuine Subaru tweeter kit is a focused option. It is designed to replace the stock tweeter speakers on specific Subaru vehicles and improve higher-frequency response and stereo imaging without changing the overall OEM feel.
Best For: Drivers who want a genuine Subaru tweeter replacement for compatible Forester and other Subaru models.
Pros:
- Genuine OEM Subaru tweeter kit with installation hardware included
- Targets higher-frequency response and improved stereo imaging
- Made for specific Subaru fitment rather than a generic universal setup
- Compact two-speaker kit with wired connectivity
Cons:
- Only for specific Subaru models and model years
- Tweeter-only kit, so it does not upgrade full-range sound by itself
- Not a universal replacement for all Forester trims
This is the most OEM-oriented choice in the group, so it makes sense if you want a straightforward tweeter swap rather than a full audio overhaul. For the right Subaru application, it offers a clean, factory-matched upgrade path.
Rear Door Value Kit – Kicker 6.5 Speaker Bundle
For replacement speakers for Subaru Forester rear doors, this KICKER bundle is built around a pair of 6.5-inch DS Series coaxial speakers with the adapters and harnesses needed for 2019-2024 Forester models. It is a practical upgrade if you want a full-range rear-door install that stays close to plug-and-play.
Best For: Forester owners who want an easy rear-door speaker upgrade with included adapters and harnesses.
Pros:
- Includes speakers, harnesses, and adapters in one package
- Made for Subaru Forester 2019-2024 fitment
- DS Series 2-way coaxial design for full-range sound
- Plug-and-play installation with no cutting needed
Cons:
- Rear-door specific, not a complete vehicle-wide speaker kit
- Only fits 2019-2024 Forester models
- Coaxial design is straightforward rather than premium multi-component audio
This bundle is a strong pick if you want a clean rear-door upgrade without chasing separate fitment parts. The included adapters and harnesses are the biggest advantage for a simple install.
Front Door Bass Upgrade – Kicker 6×9 Speaker Bundle
If you’re shopping replacement speakers for Subaru Forester front doors, this KICKER package is built for 2019-2024 Forester models and pairs 6×9-inch CS Series speakers with the adapters and harnesses needed for installation. It is aimed at drivers who want a front-door upgrade with a simple, matched fit.
Best For: Forester owners who want a front-door speaker upgrade with included install hardware.
Pros:
- Includes 6×9 speakers, harnesses, and adapters
- Made specifically for Subaru Forester 2019-2024
- 3-way CS Series design for full-range sound
- High-sensitivity setup with 450 watts MAX output
Cons:
- Front-door focused, not a complete system upgrade
- Only fits 2019-2024 Forester models
- Requires the 6×9 front-door opening and matching install space
This is the best option here if you want a more substantial front-stage upgrade than a tweeter-only replacement. The bundled adapters and harnesses also make the install path much easier to manage.
How We Picked the Best Replacement Speakers for Subaru Forester
We prioritized fitment, ease of installation, sound improvement over stock, and value. For Replacement Speakers for Subaru Forester owners, the best choices usually balance plug-and-play compatibility with a noticeable step up in clarity, especially in the midrange and treble.
We also looked for options that suit different trim levels and model years, since Subaru audio layouts can vary by generation and location in the cabin.
Quick Comparison
For a simple upgrade, OEM-style speaker kits and adapter-friendly replacements are the easiest path. If you want more output and fuller sound, front-door 6×9 kits and coaxial aftermarket pairs tend to deliver the biggest improvement. Tweeter kits are best when you want better detail without changing the whole system.
Fast Takeaway by Use Case
Choose OEM-compatible kits for the least hassle, 6.5-inch or 6×9-inch upgrade kits for stronger all-around sound, and tweeter upgrades if your system already sounds muddy or dull at higher frequencies.
Key Buying Factors for Replacement Speakers for Subaru Forester
Model year and door location: Forester speaker fitment changes by generation, so confirm front door, rear door, or tweeter placement before buying. A kit made for the wrong year range may still be physically close, but mounting points and harness compatibility can differ.
Speaker size: Common sizes include 6.5-inch, 6×9-inch, and dedicated tweeters. Bigger does not automatically mean better, but larger front-door drivers can add more fullness and output when the vehicle supports them.
OEM-style vs aftermarket: OEM-style kits are ideal if you want simple installation and factory-like behavior. Aftermarket options are better if you want cleaner highs, stronger bass response, or higher sensitivity for use with a stock head unit.
Adapters and harnesses: The best Replacement Speakers for Subaru Forester owners often include brackets, adapters, or vehicle-specific wiring support. These parts reduce installation time and help avoid cutting factory wiring.
System balance: Do not upgrade only one part of the system and expect perfect results. Front speakers usually make the biggest difference, but rear doors and tweeters can help create a more even soundstage.
Who Should Buy Which Replacement Speakers for Subaru Forester?
Daily drivers who want easy installation: Pick a genuine Subaru or Subaru-compatible OEM kit if convenience matters most.
Drivers chasing better sound without complexity: Choose a vehicle-specific Kicker or Harmony Audio kit with included adapters.
Budget-conscious shoppers: A solid coaxial replacement like the Pioneer F-Series can be a smart stock-speaker swap when matched correctly.
Owners fixing weak highs: Add tweeters or a tweeter upgrade kit if vocals and detail are missing more than low-end punch.
Forester owners planning a phased upgrade: Start with the front doors, then add rear speakers and tweeters later for a more complete system.
In short, the best Replacement Speakers for Subaru Forester depend on your year, your install comfort level, and how much sound improvement you want. Matching fitment first will save time and make the upgrade more rewarding.