The Go to Performance Throttle Body Upgrade for Mazdaspeed 3, Mazdaspeed 6, & Mazda CX-7

Introducing the first and only performance throttle body for the MZR DISI that offers no
sacrifices.

By taking a ground-up approach we were able to succeed in making a throttle body that performs better than OE while retaining OE fitment and daily drivability. With easy installation and drop-in fitment, you are sure to enjoy the gains from the Mazda3 Speed Throttle Body.

Share your performance review with the Mazdaspeed community once installed! with #CorkSport

Check out the video and installation instructions below for more info.

Mazdaspeed 3 and Mazdaspeed 6 throttle body upgrade

The CorkSport Advantage

Ground Up Approach

Instead of trying to enlarge an OE throttle body or adapting to a different vehicle's throttle body to work, we started this project from the ground up. This gave us complete design freedom to make the best throttle body possible. The CorkSport Throttle Body uses 100% brand-new parts. The body is an aluminum investment casting that was made precisely to our CAD-optimized specifications. Coupled with new electronics that are based on the OE logic, the CS throttle body is truly a full OE replacement.

Design Focused

The CorkSport Throttle Body increases the throttle plate diameter from 60mm to 72mm to allow for the maximum flow that can be achieved with the OE bolt pattern. This may not sound like a very large increase, but the stock throttle body opening fits inside the CS Throttle Body opening with plenty of room! To further help with flow, the face of the throttle plate is flat. By using a D-shaped center pivot, the airflow does not have to go around a bump right in the center of the throttle plate. Plus, this design has been endurance tested to ensure that it will stand up to the test of time.

Easy Installation

By sticking to 72mm, the OE bolt pattern could be retained. That means the install stays simple and does away with any need for special adapter plates or a different intake manifold. It has been test-fitted and proven to work on OE, CorkSport, and JMF intake manifolds. 72mm is also the optimum size for versatility between 2.5"; and 3"; intercooler piping so it will fit almost any TMIC or FMIC setup. As a final touch, an O-ring groove is machined into the body with an included O-ring so you do not need to re-use the OE gasket (it's too small for the 72mm opening anyway). Don't worry though; the O-ring is safe with oil, gas, methanol, ethanol, and other chemicals that may find a home in your engine.

Tested and Proven

We have extensively tested the CorkSport Throttle Body and have found that it flows about 150CFM more than OE when the throttle body is 75% open (which is 100% accelerator). This is about a 33% increase over the stock throttle body. That is all well and good but what does it mean? In daily driving, we noticed better response with no CEL or choppiness. When testing for power on a midsize turbo (GT30 size), we primarily noticed that the turbo was spooling at a lower RPM. When we moved to a big turbo (GT35R or larger) we saw 100-200RPM lower spooling and an increase in midrange power.

Mazdaspeed upgraded throttle body dyno results

Check out the dyno graph to see for yourself, blue is the CS throttle body, green is the OE throttle body. Note: there were no changes other than adding the CorkSport Throttle Body.

Hardware and Accessories

Each CorkSport Throttle Body comes with everything you should need for installation. Aside from the TB itself, every unit comes with stainless steel mounting hardware and a 3"; stainless steel t-bolt clamp to attach the throttle body to the silicone piping. You also get to choose whatever silicone will work best for your application. This includes:

3"; straight and 3” to 2.5” straight couplers for front mount intercooler setups.
3"; to 2.75” elbow for Mazdaspeed 3 and Mazda CX-7 top mount intercooler setups.
3"; to 2.75"; straight coupler for Mazdaspeed 6 top mount intercooler setups.

Additional Features

Vehicle Fitment:2007-2013 Mazdaspeed 3, 2006-2007 Mazdaspeed 6, 2007-2012 Mazda CX-7
Designed in America: Designed in Vancouver, Washington, in the Pacific Northwest.
CorkSport Service & Support: Receive a 2-year warranty, full-color installation instructions, all of the needed installation hardware, and knowledgeable telephone installation support at (360)260-2675.

Advisory

The CorkSport Throttle Body does not retain the OE throttle body coolant ports. This does not cause any adverse effects; however, the coolant lines will need to be rerouted upon installation.
The CorkSport Throttle Body has not been test-fitted with every single aftermarket intake manifold and intercooler piping option on the market. Fitment may vary.
The CorkSport Throttle Body has been test-fitted with ONLY the CorkSport throttle body spacer. Fitment may vary with other throttle body spacers.
The CorkSport Throttle Body can be installed with no tuning, however, to ensure optimum performance and engine health, a tune after installation is recommended

How To Install Your CorkSport Mazdaspeed Throttle Body

It will take you one hour to install the CorkSport Mazdaspeed Throttle Body with our easy-to-use instructions.

1 Hour Install Time

3/5 Difficulty

2-Year Warranty

No CEL

Does this work with a mazda 3 2.0? 2012?

Asked by Ayaden | 08/14/2024, 02:33 PM | 1 answer(s)

Will this fit a regular 2012 Mazda3 or is this specifically for the speed3?

Asked by Leo | 03/05/2024, 11:31 AM | 1 answer(s)

I have a 2012 Mazda Speed3 and buying the throttle body but unsure on what silicone elbow to buy. can you please help?

Asked by Mark | 02/21/2024, 04:04 PM | 1 answer(s)

I want to buy this throttle body but Im really confuse where to reroute the coolant lines. Is there a video or some reference that shows how to do this. Im ready to order but Im just unclear on the rerouting.

Asked by Marco Diaz | 07/11/2023, 02:35 PM | 1 answer(s)

Does the throttle body come with the appropriate coolant hose(s) to bypass the throttle body or does it need to be sourced independently?

Asked by Jared | 03/25/2023, 07:54 PM | 1 answer(s)

Hi , does this come with the throttle body sensor ?

Asked by killian | 02/27/2023, 08:10 AM | 1 answer(s)

i have a 2006 mazda 6 MPS that needs a new throttle body, i cant find a stock one that would ship to finland, and it looks like this is next best option. the car is stock except for corksport SRI and dual bypass bpv. Would you reccommend it or should i keep looking for a stock one?

Asked by jussi | 12/16/2022, 12:08 PM | 1 answer(s)

Will this fit a Mazda 3 2016 2.0l? If not what are my options

Asked by Jose Rodriguez | 12/07/2021, 12:34 PM | 1 answer(s)

Would you recommend this throttle body for stock turbo speed3s? Are the gains noticeable on a KO4 and is it safe?

Asked by Raymond Villa | 10/26/2021, 09:52 AM | 1 answer(s)

Can use for Mazda CX-5 2.0 2018?

Asked by Eric Chuah | 07/16/2021, 07:59 AM | 1 answer(s)

I'm thinking of buying a throttle body (or rather, I'm going to buy one). My mazdaspeed3 gen2 is an OE throttle body and the connection with the intercooler is an Auto-EXE suction pipe. In this case, which coupler should be selected?

Asked by ムラカミタイチ | 04/24/2021, 07:15 PM | 1 answer(s)

Do you need to buy a oem throttle body gasket or it doesn't need

Asked by D | 03/21/2021, 11:33 PM | 1 answer(s)

Is the o ring gasket better to use than your throttle body gasket you offer for high hp (500hp) set up? Thx

Asked by Dennard Taylor | 11/17/2020, 02:46 PM | 1 answer(s)

Is there a different throttle body for the 2011 Mazda 3 2.5 L Manual Transmission?

Asked by Mazda 3 FTW | 10/20/2020, 08:56 AM | 1 answer(s)

Would this fit the 2011 Mazda 3 2.5L?

Asked by Jonathan | 08/10/2020, 12:54 AM | 1 answer(s)

Section 3 in the instructions makes no sense. What am I supposed to do, disconnect the hose and then reconnect the same hose?

Asked by Juggy | 01/01/2018, 04:53 AM | 1 answer(s)

New post

Mazda performance parts financing is available with CorkSport

Looking to finance your parts purchase and want to get 6 months NO interest on any purchase over $199? Click on the image above for more details.

2007-2013 Mazdaspeed 3
2007-2013 MPS 3
2006-2007 Mazdaspeed 6
2005-2007 MPS 6
2007-2012 Cx7 Turbo

Corey R. Doi

05/08/2018, 01:54 AM

Comment
72mm Throttle Body is CRAZY and I Love IT! Stomp the gas and it planted me back into my seat, torque steer, and spin the tires! It’s a must buy! I wish they came out with this sooner!

Chris Fortune

08/15/2018, 05:04 AM

Comment
Bought this product and between adding different modifications i switch back and forth to the stock throttlebody and the Corksport throttlebody to gather data. The ground up design of the 72mm throttlebody on the stock intake manifold works well enough as city driving it feels stock and no choke for fuel or air in any RPM. Car will idle a bit higher at a cold start and you may experience some idle fluctuations at idle at a stop light or coating in neutral as a proper tune is recommended BUT highway driving pulls are smoothe and RPM's build nicely. The stock manifold throttlebody port size is a bit smaller than the Corksport throttlebody so to fix that you can port match your intake manifold to the Corksport throttlebody or buy the Corksport intake manifold that comes port matched to their throttlebody but directly bolting it on to your stock intake manifold has no negative impact that I have yet to experience.

Matt Olson

10/30/2018, 08:20 PM

Comment
Such a beauty to get this in the mail! Super easy install and much more response on the low end! Well worth the money for anyone trying to get the most out of their car!

Paul Doland

06/01/2022, 04:28 PM

Comment
I wanted a plug 'n play throttle body and this fits the bill. Good product.

Speed Zaddy

10/20/2022, 11:16 AM

Comment
The perfect compliment to any big turbo build, help relieve inlet pressure to help increase pressure where it counts. "1 more psi" lol

James Dean

01/18/2023, 09:01 AM

Comment
OEM quality with the performance you are looking for, the CS throttle body literally looks like Mazda made it themselves but with a much larger 72mm opening vs the 60mm. Quick throttle response and I swear it feels like the turbo spools faster. It does exactly what I was expecting. Highly recommend it.

Paul

12/09/2023, 10:58 AM

Comment
I have this on my CX-7. I live in California and have not had any problems passing smog checks... fyi! And is just so pretty haha!

Raider

02/27/2024, 03:43 PM

Comment
I have had the CS Throttle Body for 6 years now, and it has been flawless. With all the changes my Speed has gone through, the TB has remained. Smoother acceleration was the best thing.

Paul

06/28/2024, 10:22 AM

Comment
This was a good buy. Easy install it looks good and helps you car breathe better. Totally recommend buy this product!

John Lehr

02/14/2025, 09:23 AM

Comment
I have been striving to achieve maximum efficiency in flow from the CS exhaust manifold , v2 downpipe with 3 inch TBE , cst4 with 4 inch intake , CS V2 intake manifold it was really time to go all the way forward with the 72mm throttle body port matched to my larger intake opening . When unboxing it next to my stock one I was impressed that it looked like Mazda could have made this in overall appearance. I loved it came with even new bolts to attach it with , plug n play set up . Pretty cool they offer the different style size couplers you need in ordering for your needs .
I got the car retuned for this modification like stated I should have and so far I’m impressed by the results in drivability without much negative effects . The car does idle higher on cold starts then before , some idle fluctuations after pulling out of gear noticed but smoothes out quickly on it own . I would recommend this for anyone trying to get the full potential in airflow to their Mazdaspeed