Precision Machined Subaru WRX/STi Drivetrain Mount Kit2008+ Subaru WRX/STi · Apex Silver

$840
  • Limited lifetime warranty
  • Assembled in USA

Eliminate the slop between throttle and motion, our drivetrain mount kit reins in excessive drivetrain movement for supreme power delivery.

Experience true drivetrain control with HRD.

How your Subaru was meant to feel.

Enhance your power delivery both in straight lines and during mid-corner transitions. Keep your drivetrain planted and working at its best. When it comes to drivetrain components, there is no better option than HRD.

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Superior Strength

Our drivetrain mounts are CNC machined from 7000-series billet, granting superior strength characteristics where it matters most.

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Titan Frost Ti

Featuring our iconic Titan Frost Ti hardware, offering a modest pop of color consistent with our cohesive design language.

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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 Drivetrain Mount Kit for 2008+ Subaru WRX and STi platforms is machined from billet 7000-series alloy for superior strength characteristics, featuring our dual duty bushings, and Titan Frost Ti hardware. These components don't just look beautiful, they help to transform how your WRX or STi delivers power, inspiring confidence from the drivers seat.

We precision machine our drivetrain mounts from 7000-series billet aluminum despite the increased costs associated with the material. Why? Because we've over-engineered these component by choice. When you're dealing with the violent back-and-forth forces placed on your drivetrain, especially with higher power builds, maximizing strength comes before all else.

Included with each of our transmission mounts is an adapter plate for 5MT transmissions. If you're running a 6MT Subaru WRX or STi, easily bolt on the transmission mount as is, no adapter. If you're running a 5MT Subaru WRX (2002-2014), simply place our included adapter plate on the Titan Frost Ti studs during install. Please note while the included transmission mount fits all Subaru WRX models (2002+), the differential brace in this package is only for 2008+ models.

We've specified our 80A dual duty bushings for our differential brace and transmission mount, while the pitch stop mount receives our 75A bushings. After much testing, we found that the combination of these durometers in our poly blend with the overall design of our mounts yielded the best results. As a result, NVH is only minimally increased from your OEM component while you benefit from keeping your drivetrain locked down in a way that is not otherwise possible. Our drivetrain mount package is at home on your daily commute as much as it is chasing the podium.

Integrating our drivetrain mount package with your build will bring a much tighter feeling to your drivetrain. You will feel more connection to your drivetrain, tighter shifts and improved on/off throttle behavior, and enhanced confidence in your power delivery. This is a modification for drivers who are chasing the best power delivery and shifting experience possible, enhancing the experience from the drivers seat with each drive. After your first drive, you'll be wondering why you hadn't done this modification sooner.

Technical Specs

These components are 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 hardware. 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

What's in the Box

1x Transmission Mount
1x Pitch Stop Mount
1x Differential Brace
1x HRD Decal

Warranty

This product is covered by our industry leading limited-lifetime warranty. To read more about our warranty you can visit our coverage page by clicking here.

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Dual Duty Design

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