Reduce wheel hop and driveline slack to get a direct feel from your drivetrain with the CorkSport Mazdaspeed 3 Motor Mount Inserts for the 2010-2013Mazdaspeed 3. Unlike complete replacement motor mounts on the market which can transmit excessive vibration, the CorkSport Motor Mount Inserts fill in the gaps in the factory mount allowing it to retain its vibration isolation while providing a simple and cost effective upgrade to your Mazda for a more enjoyable driving experience.

The CorkSport Advantage:

Constructed from high durometer polyurethane: Designed to fill in the gaps in the factory rubber motor mounts to limit the movement of the engine and transmission
Patterned after the OEM Mazda mounts for accurate fitment
CorkSport Service and Support: Receive a 2 year warranty, full color installation instructions, all of the needed installation hardware and knowledgeable telephone support

how to install a transmission mount insert

I'm sure it doesn't compare to the full mount, but paired with the RMM you can't really beat it for $40. Nice little 1-2 hour job. Shifting felt crisp, just a little bit more NVH. Wheel hop is less noticeable. Need a passenger side motor mount now.

Charles Solberg03/04/2021, 05:40 PM

The best $40 I think I have spent on my 2010 MS3 (fully bolted with stock turbo). I am the original owner and have a aftermarket RMM and stock PMM and this TMM made a huge difference. The torque steer is just about gone and there is a lot more power getting to the ground. It really transformed my car. Very well done CS!!

Zach D08/28/2019, 07:50 PM

I installed this insert along with the other two motor mounts and it has transformed the car. It now feels like a taught race car. Torque steer is greatly reduced and shifting is easier. Pretty sure it won't fall out of 2nd gear anymore while doing autocross - the old rubber had virtually gone. On the downside, replacing all three mounts resulted in a huge increase of NVH, especially at low speed. It now sounds like a race car inside also. Maybe it will settle down as they bed in.

Installation was troublesome due to the center bolt that everyone talks about. My 250 ft.lb air impact driver wouldn't touch it. Eventually needed a 4ft cheater bar which snapped a ratchet I have had for 35 years. Must have taken about 400 ft.lbs to get it moving. Getting the bolts aligned afterwards also took forever due to not supporting the gearbox directly under the mount - I read someone else's advice too late. The insert was also difficult to seat fully until torquing down the bolts on the car which popped it into place.

Chris W01/19/2018, 01:28 PM

The perfect finish to the motor mount revision. I have the CS Stage 2 RMM, I elected to go with the Damond PMM and just had this insert installed. This insert is the "perfect finish" to this project. The insert cut NVH by at least 50% and totally firmed up the handling. I have virtually no torque steer! WOW, what a joy!

Rev David Poedel05/19/2017, 11:10 AM

The shifter feels more solid, the wheel hop is gone, and its much easier to launch the car all for $40. The install went smoothly because of the excellent instructions provided. Having an impact wrench made getting the center bolt off much easier (probably my favorite tool I own, makez a lot of tasks substantially faster and easier). Another great part from corksport

Tyler01/24/2016, 05:40 AM

Wow! I wasn't expecting much but the improvement this insert makes is almost as much as replacing the rear engine mount. Best of all my wife can now launch in 1st gear properly... every time... after 5 years! Easier to launch, no missed gear changes and huge WAF... what's not to like for $40? Seriously thinking about engine mount inserts now.

Jamie Graham07/12/2015, 06:48 AM

Another great CS product.. Installed this after the RMM and together, they make a world of difference driving. Another plus was that the stock transmission mount (tiny compared to the CS one) was cracked so replacing it was a good thing to do anyways.

About installation, I had a big breaker bar to loosen that transmission bolt.. Maybe an impact wrench would've worked too? I had also supported the transmission not directly under the bolt.. bad mistake as the whole transmission shifted toward the front of the car by about 1-2 inches.. After replacing the mount, I lined and threading the transmission bolt but since the 4 surrounding bolts were off, I had to use a large lever to slide the transmission over so they would register over the 4 bolts. Once that's done, the rest is just putting everything back together. Well worth the investment.

Tetsuo Uyeda05/08/2015, 08:27 AM

This product is a perfect match to the Corksport rear motor mount, and for this price you would have to be crazy not to get it.

I waited after winter to installed this insert and should have done sooner.

My car is a 'speed3 and installed the RMM before winter. Had shaking and rattling at idle and was never really good at shifting without some jerking. With this insert...wow....night and day!!! Telling you its worth it.

My car feel better, firmer and smoother. Shifting is also improved.

I like my car better now. Just feel right now!

Nick04/30/2015, 07:40 AM

Great product as I knew it would be. The reason that I am writing this review is to inform those who purchase this insert to go to Lowe's et al. and buy a 3 ft. piece of barstock as a cheater bar before you try to instal. Buying this bar will allow you to remove the stubborn center bolt so that you only have to disassemble once.

Timothy Howell03/01/2015, 05:58 PM

Install was tough. Mainly breaking the center bolt on the mount. Took two of us breaking off two cheap sockets before managing to get this thing broken so we could take it off. The rest was cake. Definitely tighter feel and for the price, no brainer.

One piece of advice, only barley lift the transmission ... barely. If pulling the mount out after all the bolts are broken and the nuts are removed, the transmission is jacked up to high. I learned this the hard way.

Also, make sure you have a beef torque wrench to ensure the center bolt gets as tight as it needs to be ... I used a 3/8 TW first but it broke at 80 ... had to buy a 1/2" drive to get it tight enough.

Daniel02/26/2015, 05:10 PM

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will it fit mazda 3 2013 skyactiv 6speed?

Asked by frank | 05/06/2020, 08:10 AM | 1 answer(s)

Will this work for the 2011 Mazda 3i 2.0? Auto trans

Asked by Tyler | 04/03/2016, 08:25 PM | 1 answer(s)

Is this compatible with the 2010 Mazda3 2.5L with the 6 speed manual?

Asked by Adrian Keels | 12/13/2015, 11:13 AM | 1 answer(s)

Does this transmission mount insert fit Gen 1 MS3?

Asked by Adam | 05/31/2015, 06:26 PM | 1 answer(s)

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Fits Models

2010-2013 Mazdaspeed 3

2010 Mazdaspeed 3
2011 Mazdaspeed 3
2012 Mazdaspeed 3
2013 Mazdaspeed 3

Chris M.

05/13/2013, 01:42 PM

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A cost-effective upgrade that is a must have for STX-class SCCA Solo competitors where a full mount replacement isn't legal. It greatly helps shift feel while taking a noticeable amount of movement/lash out of the drivetrain.

Jason

06/01/2013, 04:23 PM

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I just installed this piece and went for a drive. This thing really makes a big difference. I already have a rear motor mount. So im not sure how much that helps this part. But before installing this piece i would get pretty bad torque steer. It is pretty much gone now. For $35 this thing is a no brainer. Im very impressed.

stuart hancock

07/19/2013, 06:11 AM

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Does this fit 2007 mazdaspeed 3

CorkSport Reply: No it does not. We are working on the 2007-2009 version.

Tom

08/25/2013, 06:30 AM

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Received my Hood Strut kit, Transmission Mount, and Rear Motor mount. Fits Perfectly. The Trans mount took about 45 minutes to install and went smooth. Definite difference it feeling (Car feels way more solid). I would recommend this with the rear mount. The two really go hand in hand and a must for any MS3 owner.

Got all 3 items installed in 2 hours. so if anyone decides to go that route and get all 3 the install is pretty easy and strait forward and as always the Instructions from CS are very details and dead on.

Thanks CS for a great product and Directions. Can wait to mod some more :)

matthew newton

09/28/2013, 12:57 AM

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bummed out till I get an impact gun or something.

well I finally had time to attempt putting this part in it was 4th try no bs, just a lot of life in the way, none the less time came and its easy to get to butttt the damn last center bolt just will not come out I have since lost 1 extension 3/8, 3/8 wrench x2 and 1 of those little squessy stress balls that the face pops out yeah I bit it, now I miss it, but im gonna try again soon. I really want to get this piece in!

Brett

10/01/2013, 09:49 AM

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Looks great - does it fit a 2010 3 GT (2.5L), or are these for speed 3s only?

CorkSport Reply:These are specifically for the 2010-2013 Mazdaspeed 3.

matthew newton

10/13/2013, 09:08 AM

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Still cant get that bolt out ! Driving me mad

Matthew Newton

10/31/2013, 03:58 AM

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Ok fyi if you're interested in this part save your self the time and go buy some liquid wrench or a type of bolt loosening oil that you can let sit for at least an hour! I had this part sitting idle for nearly a month, 3 wrenches, 1 extension, and striped 2 cheap socket 17mm. Some people probably won't go through what I went through but it's worth it with all I iv gotten done to my mounts and shifter and bushings, power, ect... this pulled it together, I no longer miss gear, take off is stable, shifting is accurate in all gear and speed ranges, torque steer considerably decreased. Overall (with current supporting mods) this insert has pulled my whole speed3s power to the ground like a champ

mat

11/07/2013, 12:15 AM

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so any updates for a gen 1 mount

CorkSport Reply:No.

Jason

11/08/2013, 09:17 PM

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For those having problems,

Go to Harbor Freight and get a two foot breaker bar for $10. Bolts come loose easy without any lube. Best tool in my toolbox.

"Give me a lever big enough and I will move........"