Precision Machined Subaru WRX/STi Differential Brace2008+ Subaru WRX/STi · Apex Silver
SKU HRD-MNT-SDBS
How your Subaru was meant to feel.
Enhance your power delivery both in straight lines and during mid-corner transitions. Keep your differential planted and your drivetrain working at its best. When it comes to drivetrain components, there is no better option than HRD.
Superior Strength
Our drivetrain mounts are CNC machined from 7000-series billet, granting superior strength characteristics where it matters most.
Titan Frost Ti
Featuring our iconic Titan Frost Ti hardware, offering a modest pop of color consistent with our cohesive design language.
Dual Duty Approved
Specially formulated polyurethane bushings designed by our engineers to give the performance you're seeking, without excessive NVH.
Product Information
Overview
If you're in pursuit of a tighter feeling chassis that puts power down more effortlessly, you've come to the right place. Our HRD Precision Machined Differential Brace is machined from billet 7000-series alloy for superior strength characteristics, featuring our 80A dual duty durometer bushings, and Titan Frost Ti bushing pins. This component doesn't just look beautiful, it helps in transforming how your WRX or STi delivers power.
We precision machine our differential brace from 7000-series billet aluminum despite the increased costs associated with the material. Why? Because we've over-engineered this component by choice. When you're dealing with the violent back-and-forth forces placed on your rear differential, especially with higher power builds, maximizing strength comes before all else.
We've specified our 80A dual duty bushings for this component after much testing. We found that the combination of this durometer in our poly blend with the overall design of our differential brace yielded the best results. As a result, NVH is only minimally increased from your OEM component while you benefit from keeping your differential locked down in a way that is not otherwise possible. Our differential brace is at home on your daily commute as much as it is chasing the podium.
Integrating our differential brace with your build will bring a much tighter feeling to your drivetrain. You will feel more confidence in your power delivery from the rear, and you'll notice it most of all when attempting to put power down mid-corner. This is a modification for drivers who are chasing the best power delivery possible, complementing our pitch stop and transmission mount. After your first drive, you'll be wondering why you hadn't done this modification sooner.
We precision machine our differential brace from 7000-series billet aluminum despite the increased costs associated with the material. Why? Because we've over-engineered this component by choice. When you're dealing with the violent back-and-forth forces placed on your rear differential, especially with higher power builds, maximizing strength comes before all else.
We've specified our 80A dual duty bushings for this component after much testing. We found that the combination of this durometer in our poly blend with the overall design of our differential brace yielded the best results. As a result, NVH is only minimally increased from your OEM component while you benefit from keeping your differential locked down in a way that is not otherwise possible. Our differential brace is at home on your daily commute as much as it is chasing the podium.
Integrating our differential brace with your build will bring a much tighter feeling to your drivetrain. You will feel more confidence in your power delivery from the rear, and you'll notice it most of all when attempting to put power down mid-corner. This is a modification for drivers who are chasing the best power delivery possible, complementing our pitch stop and transmission mount. After your first drive, you'll be wondering why you hadn't done this modification sooner.
Technical Specs
This component is precision machined from billet 7000-series alloy, offering significant strength improvements versus the more commonly used 6061. We incorporate our iconic Titan Frost titanium on the bushing pins. Specially formulated polyurethane bushings offer an incredible performance benefit over your OE style mounts, without an excessive increase in NVH. Our aluminum components are finished in a Type II anodize for superior corrosion resistance and a finish that will look great for years to come.
Product Fitment
2008-2014 Subaru Impreza WRX
2015-2021 Subaru WRX
2022-2027 Subaru WRX
2008-2014 Subaru Impreza WRX STi
2015-2021 Subaru WRX STi
2015-2021 Subaru WRX
2022-2027 Subaru WRX
2008-2014 Subaru Impreza WRX STi
2015-2021 Subaru WRX STi
What's in the Box
1x Differential Brace
1x HRD Decal
1x HRD Decal
Dual Duty isn't just a feature. It's the standard.
The modern enthusiast asks their car to live two very different lives. It has to start every morning, survive traffic, and stay quiet enough to hold a conversation. Then, on demand, it has to feel sharp, confident and absolutely ready to hunt lap times or podiums.
At Happy Racer Development, that tension is not a problem to hide, it's the foundation of our Dual Duty philosophy. From dampers to drivetrain mounts to shifting hardware, every HRD component is engineered to operate across a wide spectrum of use, delivering real performance without sacrificing the ability to actually live with the car.
Refinement without loss of drivability is where Dual Duty truly differentiates itself. Anyone can make a part that feels extreme for a few laps; our goal is controlled, repeatable performance that you can live with every day. Read the framework
At Happy Racer Development, that tension is not a problem to hide, it's the foundation of our Dual Duty philosophy. From dampers to drivetrain mounts to shifting hardware, every HRD component is engineered to operate across a wide spectrum of use, delivering real performance without sacrificing the ability to actually live with the car.
Refinement without loss of drivability is where Dual Duty truly differentiates itself. Anyone can make a part that feels extreme for a few laps; our goal is controlled, repeatable performance that you can live with every day. Read the framework
