Cusco Reinforced Differential Carrier 2015 - 2024 WRX / 2008 - 2021 STI / 2010 - 2014 Legacy / 2007 - 2009 Spec B / 2014+ Forester - 6A1-489-A - Subimods.com

Cusco Reinforced Differential Carrier 2015-2026 WRX / 2008-2021 STI / 2010-2014 Legacy / 2007-2009 Spec B / 2014+ Forester

Name: Cusco Reinforced Differential Carrier 2015-2026 WRX / 2008-2021 STI / 2010-2014 Legacy / 2007-2009 Spec B / 2014+ Forester
Brand: Cusco
Price: 166.5 USD
Availability: InStock
Rating: 5.0 (33 reviews)

$166.50

$185.00

$185.00 - $185.00

$185.00

$166.50 - $166.50

$166.50

-10%

22 In Stock, Usually Ships within 1-2 Business Days

SKU 6A1-489-A

by Cusco

▶ Vehicle Fitments

Year	Make	Model
2007	Subaru	Legacy
2008	Subaru	Legacy
2009	Subaru	Legacy
2010	Subaru	Legacy
2011	Subaru	Legacy
2012	Subaru	Legacy
2013	Subaru	Legacy
2014	Subaru	Legacy
2008	Subaru	STI
2009	Subaru	STI
2010	Subaru	STI
2011	Subaru	STI
2012	Subaru	STI
2013	Subaru	STI
2014	Subaru	STI
2015	Subaru	STI
2016	Subaru	STI
2017	Subaru	STI
2018	Subaru	STI
2019	Subaru	STI
2020	Subaru	STI
2021	Subaru	STI
2015	Subaru	WRX
2016	Subaru	WRX
2017	Subaru	WRX
2018	Subaru	WRX
2019	Subaru	WRX
2020	Subaru	WRX
2021	Subaru	WRX
2022	Subaru	WRX
2023	Subaru	WRX
2024	Subaru	WRX
2025	Subaru	WRX
2026	Subaru	WRX

DETAILS

Enhance your Subaru’s rear driveline with the Cusco Reinforced Differential Carrier, engineered for WRX, WRX STI, Legacy, Spec B, and Forester models from 2007 to 2026. This premium upgrade improves traction, driveline response, and rear-end stability, making it perfect for spirited street driving and occasional track use. Experience sharper cornering and better handling without losing torque delivery.

Crafted from high-grade metals with a robust box-type design, this carrier is hand-welded to ensure maximum strength and durability. It features Cusco’s signature blue powder coat finish for corrosion resistance and style. Pre-installed premium Cusco rubber bushings provide a direct-fit installation, saving time and effort. Note that this carrier does not fit the 2022+ Forester Wilderness model. It also reinforces multi-link mounting points, enhancing rear-end rigidity for improved drivetrain performance.

Ideal for Subaru enthusiasts seeking a reliable and durable rear differential upgrade, this Cusco carrier delivers a noticeable improvement in handling and traction. Upgrade your Subaru’s rear-end today with this top-tier part available at Subimods.

Will this work on the wrx gt model that is an automatic transmission?

For specific questions such as yours it is best to discuss with a Subimods Customer Support Rep. Please reach out via email to support@subimods.com or call us at 860-291-0015.

I wandering what is the durometer specs possibly 75?

Unfortunately Cusco does not provide us with that information.

What are the durometer specs on the bushings?

Unfortunately Cusco does not provide us with that information.

Would this void warranty does it fit the 2023 wrx limited?

This will fit the 23 WRX limited. Unfortunately, we cannot comment on warranty related questions.

High Risk High Reward

I'll start by saying this addition for me is being used in tandem with the Perrin Pitchstop and Group N Transmission Mount in an effort to remove all drivetrian slop! After installing, there is an immediate change. Shifts feel better and more solid. Particularly 5th and 6th. I titled this review high risk high reward because for all the shifts you nail, you are rewarded with this wonderful feeling of solid engagement and power being applied. But, when you dump the clutch a little to fast, or make any real error (particularly when your rims are very low) boy will it punish you. The gentle shimmy of an error from before is replaced with a fierce shake now. All the more encouragement to not miss shift haha.

As for the nvh, I don't notice much vibration or harshness but, when the oil heats up, there is definitely and audible low rumble now at certain speeds that I never had before. Its not bad at all, especially if the AC is high or music is turned up!

All in all, I would absolutely recommend this carrier and there's genuinely no better company to order from!

Hello Ed,

Thank you for your review and detailed feedback! Pairing the Cusco reinforced diff carrier with Group N mounts and a pitch stop creates such a direct, uncompromising power transfer. We appreciate you sharing your thoughts on the crisp feedback and NVH! ⚙️

Regards,

Worth it

well worth it. easy install and noticeable improvement

Hello Dan,

Thank you for your 5 Star Review. We are glad that the Cusco reinforced differential carrier provided a noticeable improvement for your vehicle.

Regards,

Cusco

high quality parts like always when it comes to cusco. i am waiting to install this part till i get the rest of the rear suspension parts to install all together. will post pic's and updates when i get the rest of the parts.

Hello,

We appreciate the review. Cusco quality makes it worth the wait for a full install.

Regards,

Beefier

Easy install and much more beefier then stock

Hello,

We appreciate the feedback. A noticeable strength upgrade over stock with easy installation.

Regards,

Smoother shifting

I have essentially every drivetrain piece you can get to solidify everything and improve my shifter feel. This was the final piece of the puzzle. Looks good too.

Hello,

Thank you for your review. Glad to hear you are enjoying a smoother shifting experience!

Regards,

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Cusco Reinforced Differential Carrier 2015-2026 WRX / 2008-2021 STI / 2010-2014 Legacy / 2007-2009 Spec B / 2014+ Forester

Customer Reviews

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