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Rear Motor Mount for 2014-2018 Mazda 3, 2014-2017 Mazda 6, 2013-2017 Mazda CX-5

Price: $149.99
Price in points:  What are Points? 150 points
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Driver/Vehicle connection is a key aspect for any motoring enthusiast, and CorkSport has what you need for your Mazda!

If you are tired of the numb throttle response, gear shifts, and engine braking, then the CorkSport Race Rear Motor Mount is the performance part your Mazda needs. Excessive engine movement due to the sloppy OE RMM is just waste energy that could be going to the tires as well causes a delay feedback to your driving experience. The CorkSport Race RMM drastically reduces the amount of the engine movement, drastically enhancing your driving experience. #ZoomZoom!

Fitment for: 

  • 2014-2018 Mazda3
  • 2014-2017 Mazda6 
  • 2013-2017 Mazda CX-5

Check out the installation instructions below. Share your performance review with the CorkSport community once installed!

The CorkSport Advantage


Perfect Fitment

The CorkSport Mazda 3 Rear Motor Mount is designed to fit and install like OE. No worries or extra parts to take your Mazda to the next level.


Design Focused

The CorkSport Race RMM combines the proper materials and design to create a motor mount that provides great performance and daily driving tolerance. The billet aluminum body is lightweight, strong, and durable with the black anodized finish.


Polyurethane Performance

Through testing and tuning, multiple durometer polyurethanes were tested to determine the optimal stiffness for performance and comfort. Durometers ranging from 60A to 90A were tested with the final result coming to 70A for the right compromise of driver feedback and daily driving comfort.


Strength In Steel

In order to properly install and torque the performance rear motor mount, precision machined black zinc coated steel sleeves are used inside the polyurethane to allow proper bolt torque to be applied.

Additional Features

    • Vehicle Fitment: 2014-2018 Mazda 3 and 2014-2017 Mazda 6, as well as 2013-2017 Mazda CX5
    • Designed in America: Designed in Vancouver, Washington, in the Pacific Northwest.
    • CorkSport Service & Support: 2-year limited warranty, full-color installation instructions, all necessary components, and knowledgeable telephone support at (360) 260-2675.


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. A/C use and automatic transmission equipped vehicles may further increase the NVH.

How To Install Your CorkSport Mazda Rear Motor Mount

It will take you one hour to install the CorkSport Mazda Rear Motor Mount with our easy-to-use instructions.


1 Hour Install Time

1 Hour Install Time

Difficulty: 3/5

3/5 Difficulty

2-Year Warranty

2-Year Warranty



This was a very easy install, the only reason it would take almost hour is to get the plastic skidplate off and on. Shifting and throttle response is very noticeable. On the cold mornings it sounds like i have a aftermarket exhaust installed.....very pleased with the product....might have to buy the transmission mount also.
Big difference with this new mount. 2017 3 2.0 AT. Why should you get it? Because the car feels like it is always in sport mode now. Shifting is so smooth when you get it exactly right, and even down shifting feels drastically different.
Throttle response is awesome and over all feed back from the car has been improved. Vibrations holding you back? Its not that bad, but they are there. Girl friend didn't even notice the vibrations until weeks later. But if you drive just for the sake of driving the reward is definitely worth the cons. Plus they are only really there when idling with the A/C on. just kick in into neutral!lol.
"why does your car vibrate? cuz RACECAR....
good quality, great service. definitely would mod with corksport again.
Should be one of the first things you do to your Mazda3.

This mod is easy to do, and takes nearly no time at all. The feedback you get is well worth the cost of time and money.

Clutch pedal feel is increased, throttle feels a little more snapier.

If you are worried about increased vibrations:
There is an increase. It is small. 2/10 in power
You will feel a "bump" when you turn the car on.
You will feel a slight vibration coming through the seat in lower rpms (idle-1500)
With the AC on and idling, vibration increases. 4/10 in power.

Over all the increased NVH is WELL tolerable. I adjusted quickly and barely notice it now.

This mount was installed on a 2017 s Touring, 2.5/Manual.
Initial impression:
No noticeable vibrations, but instead its more of a cabin resonance like a subwoofer running a constant tone at idle
At start up you feel the "hit" of the motor starting.
Its NOT severe or gonna rattle your fillings out
I can still hear and enjoy my music at idle
Yes, it gets a touch worse with the AC on

In motion:
Wow this is great!
Once moving its JUST as smooth as stock, resonance/vibration wise, unless you're lugging the wrong gear then you feel it
Shifting up through the gears is cake, way smoother transition into the next gear no more rubber band lurch into 2nd (you can actually get some 2nd gear scratch now)
Down shifting and rev matching is so so much easier and you actually can get some engine braking now!
On my test route there is a really fun L,R,L transition section where you're on and off the gas repeatedly, this is WAY better now and you feel the improved response.

If you're really sensitive to acoustic vibrations or feel the stock car has "to much road noise" then dont do this mod.

If you're a spirited driver and want more feedback from the car, do it, love it, dont look back.
Easy install in about an hour and a half total, and the results are amazing. Yes, it does add vibration (I have a 2016 automatic sGT), especially at cold startup, or when the AC kicks on at idle, but unless you spend a lot of time sitting still in traffic or at lights, you’re not going to notice. The throttle response is dramatic, and the handling under power around corners is even tighter. I have mine coupled with the CS front strut tower bar, the short ram intake and the axle-back exhaust, and well, zoom-zoom has renewed meaning. The steady, direct pull of acceleration, gear shifts, braking and downshifting, and snappy response (especially in Sport mode - yeeeha!) is worth any vibration at low idle. Definitely lets out your Mazda’s inner race machine.
This was my "first priority" aftermarket purchase for my 2017 Mazda 3 Sport GT. I have had the mount installed for the last 7 months and the mount is almost broken-in.

The only time I get vibrations is when the AC is on and I'm in 1st revving at low RPM. Other than that, the mount is great! No more wheel-hop and more power getting delivered to the front wheels due to the engine not thrashing around in the engine bay.

I would recommend this rear motor mount to my fellow Mazda 3 owners.

Great work Corksport, as always!
This part is a must have if your looking to better your Mazda 3s performance. Vibrates A LOT when A/C is on if not theres not too much vibe. Very happy with this upgrade and for what its worth it is the best mod so far.
i noticed the difference RIGHT AWAY at start up with this mount.. some added vibration (to be expected). the benefit is - MUCH crisper acceleration. less flex of drivetrain results in more immediate response.. overall feel is nice and tight. install was easy and directions were perfect. nice inexpensive mod that only the driver will know.. keep it sleeper. thank you corksport!
Bought this rear motor mount, the mount failed after only 2-3 months of use, the urethane teared around the sleeve. Got it replaced after an incredibly long wait (4 months), now to need motor mount is on the car and did not failed yet. Other then that the mount a pretty stiff, vibration is increased by at least 200% so if you dont like vibration this is not for you. Shifting is WAY better now, and i recommand you buy this mount.
Nicely made part but far too much vibration at idle (both with a/c on or off) so i drilled 6-8 decent sized holes through the polymer to remove some of the material and give it some room to move. Still much stiffer than the factory Mazda mount but much easier to live with day to day (still vibrates but not as much as before).
I just installed this product to my 2014 Mazda 6 GT the feeling is really weird when you're not used to vibrations inside the car. I can feel the big difference between stock and this CS rear motor mount, the throttle response in normal drive is like on Sports mode but if you put it on Sports mode it makes more faster. Thanks to CS for granting my request. I will recommend this to my friends.
Most noticeable thing I've added. No more wrenching of the engine, vibrates a lot! Once you start going it'll stop. Once the AC kicks on it'll vibrate and rattle the car. Idling at stop is very annoying with all the vibrations. If you don't mind it then I strongly recommend it. Totally different car after installation.
I've had this in my car for 2 months now. This was the first mod I made to my 2015 Mazda 3. This mods has made the biggest difference in the way my car drives. Shifting is smoother and the throttle response is much better. I have since installed the corksport Cat back exhaust, the corksport crankshaft pulley and an Injen Ram Air intake. None of these has made as big of a difference in the way my car performs as this motor mount.


Installing the Corksport Crankshaft pulley helped the vibrations you get when the A/C turns on.
I installed this part on my 2014 Mazda 3 (2.5L, AT) about 1200 miles ago and I couldn't be happier. Installation was a breeze (finally I have a car that makes it easy to ditch the splash shield and get under the engine) and instructions provided were dead accurate.

As far as NVH goes, I only notice a different in 2 scenarios: idling in park without the compressor running (no A/C or windshield vent going) or occasionally when downshifting into first while braking to a stop. For the other 96% of my driving, I'd consider the ride comfort greatly improved: I no longer feel the engine wrenching against the rubber OEM mount (which has a stiffness rating of "I can manipulate over an inch of movement with my bare hands") on stronger acceleration, and throttle response is noticeably more immediate.

This errs just on the side of people mentioning it when they first hop in your car, but after the break-in period you'll forgot you even changed the mount until there's a kick from the compressor at a stoplight. And whatever frown that moment creates is quickly replaced by a smile when you hit the accelerator.
I installed this item on my CX-5 Saturday and right away you can feel the vibration and hear the noise throughout the vehicle; I have a manual transmission. After driving it around it subsided and by the next start up the vibration wasn't as bad but it was still prevalent. I am hoping that after time it will subside more because when the AC is on it vibrates a lot. I do feel the difference in driving, the vehicle responds quicker and feels sturdier. But if after a month or so the vibrations do not lessen I may go back to stock and give up the performance gains. If CorkSport produced 3 different settings like one of their competitors do for other Mazda models, I would definitely buy the "Street" version like I had on my CX-7. Overall not a bad investment. The vibration takes some getting used too especially since the vehicles are made with lighter materials. I am definitely going to invest in some Dynomats.
Installed on my Mazda 3 yesterday. As expected there is quite a bit of vibration at idle but that should lessen a little over the next couple weeks. You can definetly feel the difference in stiffness and if you watch the engine at wide open throttle it doesn't buck back towards the firewall anymore. Adds like 21.56 horsepower to the butt dyno! I think this is my favorite modification aside from the rear sway bar.
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Hello I have a 2005 Mz 3 GT 2.5 L Manuel just wondering if this product works? Thanks.

Asked by Kevin Kelly | 08/31/2017, 12:23 AM | 1 answer(s)

Will this fit an 07 UK CX7? Looks similar

Asked by gareth corbett | 09/11/2017, 08:20 AM | 2 answer(s)

Purchase is considered to install it in the MT model of MAZDA3. Let me question, please. Do a shake and an allophone increase by exchanging it? When those are unpleasant, I hesitate at purchase.

Asked by MAZDA3 in JPN | 08/26/2016, 11:38 PM | 1 answer(s)

There is a question which premised on purchase. I don't do a circular course run. Basically, are these parts produced to run the general way? Only the general way is run, so when an allophone and vibration occur, I'm in trouble about installing a motor mount. When starting an engine, does vibration occur? I'm waiting for an answer. Thank you.

Asked by JPN_MZD | 08/29/2016, 10:43 PM | 1 answer(s)

How bad are the extra vibrations in a manual? Very noticeable?

Asked by Andrew Royappa | 02/27/2016, 03:19 PM | 1 answer(s)

What is the expected break-in period?

Asked by Dhiman Sengupta | 07/02/2015, 03:37 PM | 2 answer(s)

I have a 2014 2.5L automatic and was just wondering three things, firstly, will installing this have any negative sideaffects to other parts of the car? Secondly, does it come in any colors other than blue? Thirdly, since I do have an automatic is this an upgrade I should consider passing up?

Asked by Coulter McGraw | 09/15/2015, 02:45 AM | 1 answer(s)

Hi, so I a mazda3 2.0 L automatic, It's already fun to drive but I figure I ordered the cold air and exhaust already. If I'm just trying to make my car faster and a little more fun to drive would it be worth buying this part you think?

Asked by mcsluethburger | 08/19/2015, 09:00 PM | 1 answer(s)

How bad is the increased NVH in automatics and what causes this?

Asked by John Rubenstein | 04/23/2015, 08:33 AM | 1 answer(s)

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Fits the following
2013-2017 Cx5
2014-2018 Mazda 3
2014-2017 Mazda 6