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Mazdaspeed Exhaust Manifold

Price: $999.99
Price in points: What are Points?1000 points
Mazdaspeed Exhaust Manifold is the first modular cast exhaust manifold platform
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Performance, Reliability, and Sound for your build…this is the exhaust manifold for your Mazdaspeed 3. You are looking at the only performance exhaust manifold that can fit 3 different turbo flange options: Stock Mazda Flange, T3 Flange, Precision V-Band and Tial V-Band. This modular design allows you to choose your flange style and change it later without replacing the entire manifold. Cast from 304SS, there are no welded flanges or connections that are prone to cracking and each flange surface is precision machined for flatness. Whether you are stock turbo or looking for the most powerful stock flange turbo, the CST6, this manifold supported 685 Whp with ease and don’t forget the specifically designed dumptube that makes life easy for you.

CorkSport Modular Exhaust Manifold for Mazdaspeed 3 & Mazdaspeed 6

MS3 Cat Exhaust Manifold


30-40whp gains over an XS Power V3 and faster spooling. This is the result of a well designed, high flow exhaust manifold. Power over the entire curve results in better drive ability and faster times at the track.

MPS3 Turbo Manifold

CAD Designed:

Each component is CAD designed and validated on car for fitment and performance. Three components: the manifold, flange elbow, and dumptube come together to create the most complete exhaust manifold kit available.

MPS3 Turbo Manifold

Runner Design:

The CorkSport exhaust manifold utilizes 1.59 inch inner diameter runner for superior high power flow and smooth radius bends to reduce exhaust gas velocity losses vs the sharp bends and 1.41 inch runners found on the XS Power V3 and similar tubular exhaust manifolds. Exhaust gas velocity and smooth flow are the keys to an efficient and powerful exhaust manifold design. Utilizing casting vs tubular allows us to optimize both of these critical aspects.

2007-2013 Mazdaspeed 3 Turbo Manifold

High Flow:

Through a combination of computer aided flow simulations and flow bench testing, the CorkSport Exhaust Manifold was optimized to increase peak flow capacity and thus performance. Flow bench testing at 28 inches of H2O showed an average CFM flow improvement of 45% over OEM and 33% over XS Power V3.

2007-2013 Mazdaspeed 3 Turbo Manifold

Bullet Collector:

A shallow 16 degree angle collector with a defined “bullet” point was utilized to increase flow efficiency into the turbine for improved peak flow and power. Paired with individual runner lengths that vary from 10.50 to 12.40 inches, the CorkSport manifold improves flow balance while maintaining the unique Mazdaspeed exhaust note.

Mazdaspeed 6 Big Turbo Exhaust Manifold

Flange Selection:

The only exhaust manifold available today that lets you choose your flange style and change it later for minimal cost and headache. With a modular flange design you can choose a Stock, T3, PTE V-Band or Tial V-Band flange today and if you change your build in the future you only need the new flange elbow, not the whole manifold. Designed for standard 44mm V-Band External Wastegates.

Speed3 EWG Dump Tube


With the unique location of the EWG we developed a custom fit 2-piece dumptube that makes installation easy. You can add this optional dumptube and avoid the high cost and time to have a custom dumptube fabricated. Designed to work with most typical downpipe and turbo setups.

Cast Mazdaspeed Exhaust Manifold


With the high heat and pressure demands put on the exhaust manifold; material and strength are critical. The CorkSport manifold is investment cast from 304 stainless steel with 0.50in (13mm) thick flanges and 0.20in (5mm) thick runner walls. This manifold is beefy so it can handle the high power high heat reliably.

Check Out the Exhaust Manifold Development Blogs Below

Tubular or Cast:

Click To View

Exhaust Scavenging:

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OEM Breakdown:

Click To View

Additional Features
  • Vehicle Fitment:2006-2007 Mazdaspeed 6, 2007-2013 Mazdaspeed 3.
  • Designed in America: 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.
advisory notice
  • 44mm EWG Block Off Plate & Clamp Kit for IWG turbos sold separately.
  • Some downpipes may need relocation of the primary O2 sensor location for installation.
  • Some downpipes may not work with the optional dumptube.
  • Designed for 44mm External V-Band Wastegate (not included).
  • Provided firewall heat shield does not work with RHD Mazdaspeed 3 Models
  • Compatible with TMIC with modification to the rear mounting bracket and without the use of the manifold-mounted EWG. PTE V-Band, Tial V-Band (coming soon) and T3 flange locations are based on stock flange location. Review your turbine housing selection with this consideration.

How To Install Your Mazdaspeed 3 and Mazdaspeed 6 Exhaust Manifold

It will take you 5 hours to install the CorkSport Mazdaspeed Exhaust Manifold with our easy-to-use instructions.

5 Hour Install Time

5 Hour Install Time

Difficulty: 4/5

4/5 Difficulty

2-Year Warranty

2-Year Warranty



View Instructions

Amazing manifold!! Build quality is top notch and I was very surprised at the amount of room there is between downpipe and wastegate pipes. I’m running a CP-E downpipe and it has at least an inch or more in every direction on my Mazdaspeed 6. Sound quality took some getting used to as it got rid of the standard Mazdaspeed note but quickly looked past once the wastegate opens! Would recommend to anyone looking for a manifold and it came a lot sooner than expected! Great work Corksport!!
Amazing exhaust Manifold! The deep exhaust node paired with the EWG, screams on my Mazdaspeed 3. I'm here with the sauce. Excellent job corksport!
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Multiple other sources (reddit and YouTube) mention dropping the turbo. But the your instructions and the service manual don't mention dropping it to get 10/8/6 nuts/studs out. Thoughts on this?

Asked by Randy | 05/20/2023, 03:10 PM | 1 answer(s)

Do you need to be tuned for this?

Asked by Kaden | 05/06/2023, 12:12 PM | 1 answer(s)

Does this exhaust manifold come with new manifold studs? Also, I read that this manifold deletes the EGR connection, is that true?

Asked by Jared | 03/26/2023, 05:20 AM | 1 answer(s)

Can I use this manifold with Garrett G25-550 turbo (v band turbine inlet flange) ?

Asked by Valentin | 02/08/2023, 07:19 AM | 3 answer(s)

I heard that Cobb Accessport will no longer remove the EGR code. I prefer not to have a dummy light that I have to check constantly. Is there a way to remove the code by either 1) Modifying the manifold to accept EGR; or 2) some other way to remove the code? And if I am stuck with not being able to have EGR, do I need an EGR block off plate?

Asked by Gino | 01/10/2023, 01:41 PM | 1 answer(s)

Do you recommend thermal ceramic coating, or header wrap? I've read that header wrap can destroy a header, is that true?

Asked by Gino | 01/10/2023, 12:45 PM | 1 answer(s)

If I order this without the dump pipe, am I able to get the dump pipe later? Or if I order it with the dump pipe, can I use it with out installing it for awhile until I’m ready to install with my next bigger turbo and external wastegate?

Asked by Alec Spaulding | 07/26/2020, 06:51 PM | 1 answer(s)

Will these pass California emissions? And do they come with a carb sticker?

Asked by Alex | 08/23/2020, 09:48 PM | 1 answer(s)

Will this work with Tial vband turbine housing?

Asked by Amardeep Singh | 12/21/2020, 08:12 PM | 1 answer(s)

What is the biggest turbo you can fit with this stock location manifold?

Asked by Marco Medina | 11/09/2022, 08:48 PM | 2 answer(s)

While you recommend an upgraded intercooler prior to using this exhaust manifold, will this exhaust manifold work with the Corksport Upgraded TMIC?

Asked by Ryan | 08/31/2022, 04:42 PM | 1 answer(s)

Is it possible to install this manifold with the OEM TMIC ?

Asked by Sylvain | 01/04/2021, 12:22 PM | 2 answer(s)

Based on the position and routing of the wastegate it looks like it would be easy to recirc into the bell mouth section of the 3.5" downpipe. Is this something you guys would be likely to produce in the future? If I were to have a setup like I've described custom fabbed would this mess with the O2 sensor on the bell mouth?

Asked by Bryce Miller | 07/07/2022, 01:40 PM | 1 answer(s)

I am considering buying it with the stock flange, however, if i want to upgrade later, can i buy the other flanges separate? Thank you.

Asked by Pedro Alvarez | 12/01/2021, 07:18 AM | 1 answer(s)

Will this fit with the 44mm gate installed with treadstone piping

Asked by Randy | 11/29/2021, 05:49 PM | 1 answer(s)

Do these header work on the regular mazda 6 non turbo?

Asked by Senko | 04/25/2021, 10:38 AM | 1 answer(s)

Will the EWG dump tube set up work for under route intercooler piping kits?

Asked by Andrew Tremblay | 11/08/2020, 07:23 PM | 2 answer(s)

Is it unequal length similar to stock, or equal length?

Asked by Alec Spaulding | 07/26/2020, 07:39 PM | 1 answer(s)

Will be buying this for a CX-7. Have the exhaust manifold covers been tested with these? I'm in Cali and need to hide the manifold as much as possible from the smog cops.

Asked by Steven Swanson | 06/24/2020, 12:42 AM | 4 answer(s)

From the graph, it looks like there was a six percent gain. I have a CS-FMIC, CS-TIPSRI, CST4, can a tune. Would I be looking at about the same percentage gain?

Asked by Jeffrey Parker | 06/06/2020, 10:10 AM | 1 answer(s)

Does this come with a wastegate block off? Just incase we're running an internally wastegated turbo?

Asked by Ricardo Roland | 06/07/2020, 09:52 PM | 1 answer(s)

If i chose stock flange when i ordered what are my options for acquiring the other flange adapters? can i purchase them separately?

Asked by Jordon waring | 06/06/2020, 08:51 PM | 0 answer(s)
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
Note for Right Hand Drive 2007-2013 Mazdaspeed 3: the provided heat shield will not align with the OEM studs. The heat shield will need to be modified or the OEM heat shield can be modified.
2006-2007 Mazdaspeed 6
2007-2012 Cx7 Turbo fitment not confirmed
This can also be fitted to the 2.0 and 2.5 MZR non DI engines to allow you to build your own turbo kit. Use at your own risk.