Performance Rear Motor Mount - 2019+ Mazda 3 & CX-30 All Models

When out carving the back roads, the feedback that is gathered from the vehicle directly contributes to the confidence level that you have as a driver. That is why we sought to improve the confidence that you get from your 2019+ Mazda 3 & CX30. One of the main components that play a big part in the level of feedback you get from your Mazda, is the Rear Motor Mount or RMM. The OEM RMM features a soft rubber material that leads to excessive engine movement. This movement results in a decrease in throttle response, shifting feel, and vehicle feedback. The CS RMM was designed to eliminate these issues with the OEM mount and give you the driving experience you want when hitting the back roads.

The All New Rear Motor Mount OEM vs CS for Mazda 3 & CX-30 - CorkSport

The CorkSport Advantage

Materials & Manufacturing:

The CorkSport Rear Motor Mount is designed to be a direct replacement for the OEM RMM and installs just as easily. This leads to a simple and quick process that will increase the feel and performance of your Mazda 3 in no time.

2023 Mazda performance rear engine mount

Design Focused:

The CS RMM features high-quality materials and a design that delivers on reducing engine movement and increasing feedback to the driver while not being overwhelming during daily driving. This is accomplished through the utilization of the RMM body which is made out of A356-T6 aluminum and is precision machined to accept the 70A polyurethane bushings that eliminate much of the unwanted motor movement.

Performance Polyurethane:

The selection to use a 70A durometer poly bushing was for its ability to provide a substantial improvement in reducing the engine’s movement, while not being overly aggressive. Using these bushings does increase the NVH in the car, but we think it is well worth the benefits and it is still pleasant when daily driving.

Steel Poly Sleeves:

The CS RMM bushing sleeves are precision machined out of steel to provide a robust and durable part that is then zinc coated to provide protection against corrosion.

2019 Mazda 3 BP Rear motor mount RMM Hardware

Stainless Hardware:

Anchoring the new performance RMM in place is a hefty M14 stainless steel bolt, washers, and nylock nut. Corrosion-resistant SS will stand up to the harshest road conditions.

Weight Savings:

While minor, everything adds up, the CorkSport Rear Motor Mount shaves 2.50 pounds from your Mazda. Reducing weight from 4.70* to 2.20. *OEM Turbo model RMM weight.

NVH: Noise, Vibration, & Harshness in the vehicle cabin will be increased with the use of the CorkSport rear motor mount due to the increased stiffness.
The CS RMM will have the most noticeable NVH at idle and just off idle RPM range, especially when using the A/C.

Additional Information

Vehicle Fitment: 2019+ Mazda 3/CX30 Naturally Aspirated & Turbo, AWD & FWD.
Designed in America: Designed in Vancouver, Washington, in the Pacific Northwest.
CorkSport Service and Support:: 2-year limited warranty, full-color installation instructions, all necessary components, and knowledgeable telephone support at (360) 260-2675.

How To Install Rear Motor Mount for Mazda 3 and CX-30

It will take you 1 hour to install.

1 Hour Install Time

3/5 Difficulty

2-Year Warranty

No CEL

After driving around on a test unit for a bit (same as the release) my feedback aligns pretty well with the Corksport statement. I would say the feedback element of having the stiffer RMM done in the turbo automatic really helps bring together the harmony of throttle and vehicle action, providing a little more immediate feedback and reducing the "slush" feeling the stock RMM provides.

The added NVH and vibrations are minimal, and I agree that every little bit of weight savings we can get is important in our car.

Phillip Dandurand10/20/2022, 05:43 PM

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Is there any methods to reduce the noise a bit during idle ? Its very loud and installed as per instructions and torque spec

Asked by Darrell Toring | 05/20/2024, 10:42 PM | 1 answer(s)

Will this fit my 2020 Mazda 6 2.5T?

Asked by Evan Kops | 08/22/2023, 05:46 PM | 1 answer(s)

Hello, I have installed RMM, and I did not use a torque wrench to verify torque specs My first drive with the new RMM is overwhelming harsh with the NVH. It doesn't seem normal, so my question is how much does it matter that I didn't torque to specs? I'm thinking I must have over torqued and the RMM can't do what it's designed to do? Is this correct? Thanks

Asked by Kevin Hankins | 02/15/2023, 09:18 AM | 1 answer(s)