Mazdaspeed 6/Mazda 6 Rear Adjustable Camber Arms

CorkSport is pleased to reintroduce the the 1st Gen Mazda 6 and Mazdaspeed 6 Adjustable Rear Camber Arms to complement the return of the CorkSport Adjustable Front Upper Control Arms for Mazdaspeed 6!

By replacing the stock camber arms with the CorkSport Adjustable Camber Arms, you can adjust your suspension to accommodate for lowering springs or coilovers and fine tune your Mazda 6 or Mazdaspeed 6 to the appropriate camber setting needed to balance uneven tire wear and improve cornering performance.

Mazda 6 and Mazdaspeed 6 Adjustable Rear Camber Arms

Our design offers +OEM to – 4.5 degrees of adjustability along with cross camber adjustment allowing drivers the ability to align their suspension to match their enthusiastic driving style on and off the track.

Unlike other adjustable camber arm options on the market, our unique design includes spherical bearings that replace the soft rubber bushings on the OEM camber arms, providing a true attachment to the suspension of the vehicle for improved handling and road feel.

Mazda 6 and Mazdaspeed 6 Adjustable Rear Camber Arms

The ease of adjustability on the vehicle and the unique nature of the spherical bearings will provide you with improved cornering control that can’t be matched by any other options on the market today.

The CorkSport Adjustable Rear Camber Arms are also available for all Mazdaspeed 3 and Mazda 3 vehicles and back for Mazdaspeed 6 and 2004-2008 Mazda 6 vehicles. They come as a set for just $199.00.

Mazda 6 and Mazdaspeed 6 Adjustable Rear Camber Arms

The CorkSport Advantage:

  • Superior Design: Spherical bearings replace the soft rubber bushings used in OEM and other aftermarket camber arms. This will truly attach the camber arm to the suspension of the vehicle for more control and added road feel
  • Made from reinforced high strength extruded bent steel tubing: Stronger less brittle and more durable than aluminum
  • Fine Tuned Adjustability: +OEM to – 4.5 degrees of camber adjustment and cross camber adjustability for fine tuning of your suspension
  • Full Adjustment: Can be adjusted on-car with a wrench while still installed in the vehicle
  • Sold as a Set: We know you need two so we simplified the math for you by selling them as a set
Mazda 6 and Mazdaspeed 6 Adjustable Rear Camber Arms

For more information about the CorkSport Adjustable Rear Camber Arms, check the listing here!

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Mazdaspeed 6/Mazda 6 Front Adjustable Camber Arms

We are happy to announce the return of the CorkSport Adjustable Front Upper Control Arms for Mazdaspeed 6 and GEN1 Mazda 6 to complement the return of the CorkSport Adjustable Rear Camber Arms. Back and better than ever, the CS control arms provide improved handling and easier wheel fitment through front camber adjustability. An impressive 4.5 degree adjustment range ensures you are able to get the camber you want. Whether you are dialing in your handling for the track, correcting your added camber from lowering, or even just adding in more camber for that new wheel and tire setup, the CS adjustable control arms are a good fit for your build.

CorkSport Adjustable Front Upper Control Arms for Mazdaspeed 6 and Mazda 6

The focus of the CorkSport Adjustable Control Arms is an easy modification of the OEM camber setting. You only need to jack up your car to easily access the four bolts on top of the control arm. Once loosened you can adjust as needed before tightening everything back up and lowering your car, without even removing a wheel! It’s a great setup for correcting camber from pothole damage or lowering, optimizing your alignment for the track, or adding negative camber to get the stance you want to fit that new wide wheel setup.

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Modify your Camber setting without needing to remove your wheel!

At CorkSport lowering spring height (1.5” lower than OEM), our local race alignment shop measured an adjustment range of approximately +0.5° to -4.0°. During the measurements they even complimented how easy the CS arms are to adjust! If you’re lower than CS spring height, you are able to go even more negative due to the natural camber gain of the MS6 double wishbone front suspension. While if you are higher than CS springs, you won’t be able to go as negative.

CorkSport Adjustable Front Upper Control Arms for Mazdaspeed 6 and Mazda 6

Truly an easy bolt-in installation with no strange handling geometry changes

Because the CorkSport upper control arms replace the entire OEM upper control arms, we knew that fitment was vital to ensure correct handling characteristics, and an easy installation. These arms were designed directly from the OEM control arms so they are truly an easy bolt-in installation with no strange handling geometry changes. With the added camber adjustment, we also verified clearance throughout the suspension travel and at all camber settings to prevent any strange noises or damage to your vehicle.

CorkSport Adjustable Front Upper Control Arms for Mazdaspeed 6 and Mazda 6

Long lasting strength for your Mazdaspeed6

We have put the CS adjustable front camber arms through extensive real-world testing to ensure long lasting strength for your car. We have been testing an early production unit on a MS6 for around 6 months at the time of writing. This car has been used in everything from daily driving, to aggressive driving in the twisties, to even hauling heavy loads around. Throughout all of this, the car has been setup with -3° of camber with a 255/40-18 summer tire on a 9.5” wide wheel.  We have seen consistent performance out of the CS control arms with no issues whatsoever, so you can be sure they can take whatever you can throw at them!

CorkSport Adjustable Front Upper Control Arms for Mazdaspeed 6 and Mazda 6

Each set of CorkSport Adjustable Control Arms is made from A513 steel for long lasting strength and durability. The camber adjustment box on the arms are gusseted for added strength and rigidity. The arms are then finished off with a black powdercoated finish for long lasting corrosion protection and a great look. Each kit also comes with brand new ball joints, castle nuts, and cotter pins to keep everything operating correctly. Plus, we upgraded the rubber bushings where the arms mount to the chassis to spherical bearings. This change ensures good consistent handling feel and reduces slop that can result from old worn out rubber.

CorkSport Adjustable Front Upper Control Arms for Mazdaspeed 6 and Mazda 6

That about sums up the CorkSport Adjustable Control Arms for Mazdaspeed 6 and GEN1 Mazda 6! Be sure to check out the product listing for more images, as well as our product video to see these arms in action. If you have any questions, shoot us an email or give us a call, we’re always happy to help!

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Mazdaspeed High-Pressure Fuel Pump Rebuild Kit

We are proud to introduce the CorkSport HPFP Rebuild kit for the Mazdaspeed 3, Mazdaspeed 6, and Mazda CX-7 Turbo. Replace every seal in your HPFP with a brand new, E85 safe O-ring/X-ring made to exact OEM specifications. The perfect reliability upgrade to install with your CS HPFP internals, we even include new hardware and a security Torx bit to help the install go smooth. Read on for more details and be sure to give us a call if you have any questions!

The best and most complete Mazdaspeed HPFP seal kit
Mazdaspeed E85 Safe HPFP O-Ring Rebuild Kit

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The potential for HPFP failure

While the HPFP internal upgrade is a must-have mod for any Speed, the rest of the HPFP is commonly ignored. As the cars get older and ethanol blends are used more often, the factory O-rings can begin to break down, causing fuel dilution in your oil, and the potential for HPFP failure. The CS HPFP rebuild kit replaces all your seals so you can be confident that your HPFP is performing exactly as intended.

Save $35 off the CorkSport Mazdaspeed Fuel Pump internals when purchased at the same time as the COBB Accessport

Was the HPFP system designed with ethanol in mind?

With the MS3 and MS6 coming out right around the time ethanol mixes in gasoline were becoming more common, it’s hard to say if the HPFP system was ever designed with ethanol in mind. We spent months researching and testing on a car and in isolated conditions to find the best O-ring material for gasoline and ethanol blends. Each seal in the CS HPFP rebuild kit uses this material so your Speed will operate properly no matter if you’re using the standard pump gas E10 mix, and E30 mix, or even straight E85!

CorkSport

To ensure the correct size for all seals, we were lucky enough to come across a zero mile DISI MZR engine. The HPFP was disassembled and all seals were carefully measured to ensure each O-ring exactly matches the OEM specification. We even had tooling made to produce a custom X-ring that matches the exact specification of the OEM X-ring. This is vital as the X-ring fits on your HPFP piston and needs a precise fit to ensure an OEM quality seal between the fuel chamber and your cam follower.

High-Pressure Fuel Pump Troubleshooting Blog

Lastly, we include hardware to replace the annoying Torx screws that are used in the OEM HPFP assembly. The small security Torx can be notoriously difficult to remove, so we even include a bit to help with removal. As with all CS products, the HPFP rebuild kit comes with full-color installation instructions to guide you through the rebuild and ensure you know where each and every component goes.

Mazdaspeed E85 Safe HPFP O-Ring Rebuild Kit

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Recipe to Make a 500 HP Mazdaspeed 3

400 Whp not enough for you and your Mazdaspeed3? 

Searching for more power for your speeds MZR engine? 

Are you building your DISI motor, and trying to figure out your next setup? Say no more… 

This next Mazdaspeed-focused blog is going to focus on making some big power numbers, and what it takes to get there. Now is the time to go beyond the scope of the 400-wheel horsepower to look at what it takes for 500 horsepower at the wheels. 

In our 400 WHP blog, this is not an all-inclusive guide and the only way to achieve these power levels… However, it’s something that’s been tried and tested for years and proven to be a reliable method of making the power you’re after. We are aiming to educate you in the best way to make the most out of your MZR engine.

Let’s get started 

With the MZR engine being out for over 10 years, it’s had a lot of time under the knife. We know how the engine responds to different airflow mods, tuning characteristics, fuel, etc.

We also know that 400 Whp is about the limit of the stock bottom end on the Mazdaspeed 3. If you have a Mazdaspeed 6, then you can assume it’d be a bit less given you have AWD and need to account for further drivetrain loss.

It is beyond this point that the motor is in danger and could potentially let go. Keep in mind that at 400 Whp you are nearly doubling OEM power output, and that’s a lot of strain on those pistons and rods that were never designed to endure that power long term.  If you are wanting to go beyond 400 Whp then you should know that you are also looking at the price tag of a Built motor.

What it takes to Make 500 Whp In Your Mazdaspeed
CorkSport

Now, if you are relatively new to this, and aren’t very familiar with the basic building blocks of the platform such as the Cobb Accessport, and Upgraded Fuel Pump Internals, then I invite you to read our 400 Whp Blog to build a good foundation. Do you feel you have a good understanding of what it takes to get to 400 Whp? Then you are ready to read on!

When you’re at a point in your build that you are seeking 500 Whp then it’s safe to say that you probably have gotten the more tedious stuff out of the way… You probably have about every bolt-on modification, and you understand what it’s like to work with a professional tuner.

That being said, let’s do a bit of a recap on the 400 Whp mods, so you have a good idea of where we need to go from here.

These are all the recommended/required mods to increase engine airflow and efficiency to make 400 WHP.

Basic Bolt Ons: (Less Expensive / easily removable parts )
Fuel Pump Internals
3.5” Intake (Requires ECU relocation or battery box)
Upgraded EBCS
Upgraded Map Sensor
Upgraded Downpipe
Upgraded Intercooler
Upgraded Catback Exhaust
Oil Catch Can

Advanced Bolt Ons: ( More expensive / more difficult to remove )
Upgraded Turbocharger
Upgraded Intake Manifold (Optional but Recommended)
Upgraded Exhaust Manifold (Optional but Recommended)

Fuel:

Stock Fueling on Pump Gas usually nets around 330-350 Whp depending on octane and gas quality.

Stock Fueling on E85 blend fuel usually nets around 370-390 Whp depending on Tune aggression and also Quality of the gas and E85.

With Aux fueling such as port fuel, or methanol you can easily bump up over the 400 Whp mark and beyond. (I’ll get into the differences more in a bit)

Putting down 500 Whp pretty much requires many of the same mods that 400 Whp does, BUT the primary game changers are the Advanced Bolt On’s and Fuel.

(If you’d like to refresh your memory on the basic bolt-ons and how they affect your Mazda please refer to the 400 Whp blog.)

I’m ready for more POWAHH

In the grand scheme of things, making the 400whp is relatively easy and affordable considering it can be done on the stock block. With bolt on parts, fuel, and a tune you can easily hit that number. But as soon as you want to make more, you’re looking at a built engine, as previously mentioned, And that’s a whole new can of worms.

So, what’s all involved in a built motor? That’s a bit of an open-ended question as there are so many variables to take into consideration. However, “built” engines usually contain forged pistons and rods with upgraded bearings to handle more abuse. From there, the complexity increases as you get into port work, cams, etc. I will touch on that a bit more later. 

Fortunately for you, most engine builders have their entry level engine ready to handle 500 wheel horsepower and it’s a pretty basic build that features stronger internals. But, the tedious stuff like port work is usually reserved for the higher tier engines that are usually built for more power.

I won’t get into the engine building side of things, as that could turn into a whole other tangent. But you can assume that a built motor may cost you anywhere from 5k and up dependent on the level of motor you go with. From there we can start piecing together our 500 Whp build.

What it takes to Make 500 Whp In Your Mazdaspeed
CorkSport

Let’s Talk TURBO’S (Crowd Cheers) 

The turbo is the heart and soul of the Zoom-Zoom, so it seems like a suitable place to start.

What it takes to Make 500 Whp In Your Mazdaspeed with the CSt5 Mazdaspeed Turbo
CST5 Turbo Upgrade – 2006-2013 DISI MZR

As we know, the CST4 is happy up to around 400+ Whp. Which is why it was the recommended turbo in the 400whp blog. But now we are ready to take a step up to the CST5 Turbo for the Mazdaspeed which is happy up to… You guessed it! 500+ WHP. With the ability to hit 20 PSI by 3500-3600 RPM and Carry out 30 PSI it really packs a punch for its size. You may be needing to upgrade your intake to pair to the T5, I’d recommend our Power Series 3.5” Intake I mentioned earlier. It will come with the 4” coupler required to mate up to the turbo.

The turbo is available with an internal gate, or an External Gate so you can choose what works best for you. Both options can hit the same power numbers.

Upgrade Your Turbo with the CST4

Let’s Talk Fuel

What it takes to Make 500 Whp In Your Mazdaspeed
HPFP System

“What options do I have for bigger injectors?”

At CorkSport I get this question rather often. Unfortunately, I must tell them “There aren’t any”

Without going too off topic here I will explain why.

Our cars feature a Direct Injection fuel system or DI… And by today’s standards, it’s a bit primitive. The MZR DISI was one of the first pioneers of modern DI, which is probably why the OEM high-pressure fuel pump can’t even sustain the full potential of the factory injectors. Don’t worry, the CorkSport Fuel Pump internals fixes that problem.

Port Injection is simple and easy to maintain. It works by spraying low pressure fuel into the intake runner where it atomizes in the air stream before entering the combustion chamber.  For car guys, it’s fantastic and easy to swap out injectors when you are ready for more fuel.

Direct Injection takes a whole new approach. Instead of the fuel going in through the intake manifold, it goes DIRECTLY into the combustion chamber.

In order to overcome the force of compression, the fuel must be highly pressurized in order to atomize correctly. It also must deliver more volume in a shorter amount of time. This is why your Mazdaspeed has a high-pressure fuel pump. 

This causes a whole lot of complications for injector developers because things like fuel pressure also become a huge variable when attempting to create a larger Direct Injector. The bigger the hole on the injector, the more fuel pressure is required to create adequate atomization. Combining that with the rarity, and size of the Mazdaspeed platform, it’s just not worth it for any manufacturer to develop one.

So, what’s the solution to getting more fuel? Well… As previously mentioned, you pretty much have 2 choices Port Injection or Methanol. Since both of these are considered Auxiliary fueling, they are controlled by separate controllers, unless you want to ball out and get a Motec ECU that can control the OEM engine systems, as well as your port fuel.

Choosing which system, you want to go with solely depends on your power goals, and how much money you have to spend. Those 2 factors are pretty much the only question you need to ask yourself.

What it takes to Make 500 Whp In Your Mazdaspeed
Leo dropping that cash on a port Injection fuel system

Methanol – Cheap and simple 

Port Injection – Expensive and Reliable 

You must remember that the OEM fuel system, even with E85 in your tank is only good up to around 370-390 WHP. So, everything beyond that is supported by your AUX fueling. If your extra fuel system stops spraying for any reason, that could lead to catastrophic damage depending on how much you’re relying on it. When you’re just trying to nudge over the 400 whp mark on a CST4 or CST5 then Methanol is usually fine in my opinion. But beyond that, I’d be concerned with the reliability aspect.

When you have a properly set up port fuel kit (Manifold with fuel rail required) it behaves almost as if there is no AUX fueling system. This is especially the case when you have it all integrated into your factory gas tank and don’t need to fill up a separate cell. A quality Port Fuel Kit is pretty full-proof.

You’ll have to make the decision that’s best for you, but I’d recommend a port fuel kit to support 500 Whp, vs a heavy spraying methanol kit.

Mazdaspeed Intake Manifold with CorkSport fuel rail
CorkSport Manifold With Fuel Rail For Port Injection

Let’s Talk Manifolds 

Manifolds are responsible for transferring all the air in and out of the motor from their respective cylinder. This job is an important one as it needs to distribute the gases as evenly as possible. The more even the flow, the better the performance!

On the Mazdaspeed Platform, the OEM intake manifold is known to be the bigger restriction over its exhaust counterpart. With very unequal flow distribution across the 4 runners, it has been proven not only to restrict power but also cause premature wear and tear on cylinder #3; here’s why.

This is caused by “over-feeding” air to #3 in comparison to the other cylinders. Over time this #3 is actively running leaner than its counterparts which is why it’s been deemed the most common cylinder to blow if an engine does give way.

CorkSport Intake Manifold for Mazdaspeed shown to provide example of even Flow
CorkSport Intake Manifold shown to provide example of even Flow

It is because of this, that I always recommend a CorkSport intake manifold for even stock power levels. It may not be required to make 500 Whp, since you can essentially just turn up the boost to counteract the restriction. But in the name of reliability and efficiency, you should always try to help your engine breathe with the most minimal effort while also helping it maintain its health. 

Mazdaspeed engine making 500 WHP
CS manifolds, FMIC, and 3.5” intake in picture

The OEM Exhaust manifold may not be as bad as the intake manifold, but it’s still not ideal, especially at this power level. A performance exhaust manifold needs to be designed with exhaust scavenging in mind. 

Exhaust scavenging is a very cool effect. The exhaust gases leaving the combustion chamber travel out the individual runners and enter the collector. It’s at this point that it creates a vacuum-like effect on the runners, assisting the exhaust gases to escape from the other cylinders. This constant scavenging helps improve exhaust flow dramatically, especially when you start making power over 400 Whp.

You can learn more about exhaust Scavenging in our Blog that dives deep into it and shows examples comparing our Exhaust Manifold to OEM!

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What it takes to Make 500 Whp In Your Mazdaspeed
CS Exhaust Manifold vs The OEM Manifold

When you replace both the Intake and Exhaust Manifolds with a performance unit you are drastically helping your motor improve its efficiency, which can mean 3 things.

1. Make the same power on less boost.
2. Make more power on the same boost.
3. Make Way more power on way more boost. 

When you have to push your car less to make the power you want, reliability improves, and it also needs more room on the table for when you want to make even more power later on.  That leads us to our next topic, Efficiency Mods.

The Cherry On Top 

With a built motor, full bolt-ons, fuel, and a big enough turbo you can easily hit 500 whp.

However, efficiency mods such as Camshafts or Throttle Body will help you make more power easier, or really push the limits of your turbo by improving its ability to perform.

Our CS Camshafts are ideal when you start getting into this power range. It helps with everything from turbo spool, midrange power, and top end. Even on K04 powered speed 3’s / 6’s our cams netted around 20 Whp. You can imagine the kind of exponential improvements it can make as you move up in power.

Camshafts for Mazaspeed
Mazdaspeed Camshafts for DISI MZR Motor

That being said, if you’re already having a motor built, or you happen to be going inside your motor, its not a bad idea at all to toss these cams in. They will only help you, and if anything, help your car to not need to work so hard when you’re pushing its limits.

Performance throttle body for Mazdaspeed
Performance Throttle Body for 2006-2013 DISI MZR Mazdaspeed

To top that off something like our CorkSport Throttle Body has been proven to make more horsepower and flow 33% more CFM than the OEM unit. Up until recently, no other throttle body has been a viable option due to drivability issues. But CS now offers a drop in plug and play unit that doesn’t come with the problems and utilizes OEM ECU logic to function. Modifications like the throttle body are the awesome little bonuses you can do to help the car hit that 500 Whp mark even easier.

Let’s Recap

So, to cover everything that we’ve learned:
This is what we recommend to achieve 500 WHP

1. Built Motor with upgraded Cam Shafts
2. Auxiliary Fueling
3. Full Bolt-Ons, CS Throttle Body recommended.
4. CST5 Turbocharger
5. Manifolds

We hope you enjoyed reading this blog, and now have a better understanding of the details that go into making 500 whp. Next, we will be reviewing the in’s and out’s of 600 whp!

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Mazdaspeed Cast Exhaust Manifold

Today is a huge day for the Speed community; one that has been coming for a long time with both celebration and frustration. Never the less time is up and this project is ready for the community as a whole!

We are proud to announce the Performance Exhaust Manifold for the Mazdaspeed 3 & 6! With over 2 years in development, the MPS exhaust manifold has been long waiting, but for good reason. A project of this scale does not happen overnight; many variables have to be considered, evaluated, and verified.  

I’m confident you have seen “leaked” images from our 6 Alpha and Beta testers over the recent month, but we can make it official.  

Mazdaspeed Cast Exhaust Manifold
CorkSport

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But with so many options currently available what makes the CorkSport option compelling? Why should you care?  

Those are great questions and can easily be answered with multiple great reasons. The most obvious is the design: this includes the overall shape and the type of material & manufacturing.  

Mazdaspeed Cast Exhaust Manifold
Mazdaspeed Exhaust Manifold

Material & Manufacturing: In our initial investigation and vetting of this project we strongly considered two primary manufacturing methods; Casting and Tubular fabrication (check out the blog here). In a nutshell, we opted for a cast manufacturing method because it reduced the chance of failure modes, reduced the overall size and weight, and gave us more flexibility in design.  

Like most exhaust manifolds, we opted to use 304 stainless steel because it is corrosion-resistant, handles heat well, and is a common and cost-effective material.  

Mazdaspeed Cast Exhaust Manifold modling in CAD
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Following up is the Design of The Exhaust Manifold

The list of details that went into the design is far too long to list here, but we can cover the major items that define the CS Exhaust Mani. With investment casting, we had a lot more flexibility in design with the bend radius, diameters, and wall thickness of the individual runners. This allowed us to increase the inner diameter of the runners to 1.59 inches, achieve a 0.200-inch wall thickness, and fine-tune the path and bends of each runner to optimize runner length and flow.  

Mazdaspeed Cast Exhaust Manifold airflow modling
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With that flexibility in design, we were able to increase peak flow and improve flow balance per runner. Overall we were able to increase peak flow 45% over the OEM manifold and 33% over the XS Power V3.  

Next up in design, and arguably the most exciting and unique aspect, is the modular flange system.  

Mazdaspeed Cast Exhaust Manifold modular flange system
Mazdaspeed Exhaust Manifold

This is unlike any other manifold available for the Mazdaspeed today…you can choose your flange between OEM Stock Flange, Precision V-Band, or T3. Sure all these options are available today from other options, but none are modular. Say you pull the trigger on the OE Stock Flange today, but a year from now you want to upgrade your build to a Precision V-band flange. With any other manifold, you would have to buy another $900+ manifold to get the new flange, but with the CorkSport Exhaust Manifold, you just have to get the new flange elbow for your setup. This is MUCH MUCH cheaper and easier to change!

Installed Mazdaspeed Cast Exhaust Manifold
CorkSport

Speaking of install, compared to the typical performance exhaust manifold the CS design is cake to install. With the modular design, you are not fighting the entire bulk for the manifold and flange at the same time. You can leave you turbocharger unmoved connected to the downpipe and intake system, you just install the flange elbow after the manifold is in and bolted to the engine.  

Full product Mazdaspeed Cast Exhaust Manifold
Mazdaspeed Exhaust Manifold

Making life even easier…we opted to develop a pre-fabbed dump tube (screamer pipe) for the Tial 44mm EWG. This is an optional feature for the kit, but one we highly suggest because it’s just so damned easy. Designed for MPS 3 and MPS 6, it fits around most standard downpipes and dumps below the sub-frame right behind the drive axle. Also included with each kit is a SS heat shield that is required for the GEN1 and GEN2 Mazdaspeed 3. You Mazdaspeed 6 guys just get a cool garage ornament.  

So how does the CS exhaust manifold stack up on power? 

Dynograph of the Mazdaspeed Cast Exhaust Manifold on CST4 Mazdaspeed Turbo
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First up is a fully bolted CST4 MS3 with a 6th port fuel system: Comparing the CS EM to the OEM EM, this drop-in test we found that the turbo was spooling faster, carried more mid and upper range power and held that gain through to redline. Overall it improved power under that curve which is what truly makes a car fast and fun to drive.  

Mazdaspeed with CST6 Turbo and Cast Exhaust Manifold Dynograph
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Next up is a fully bolted and built CST6 MS3 with 8th port fuel system: Just like the previous graph, we saw an improvement in spool, mid and upper rpm ranges, and carried it to redline. The difference here is the exhaust manifold we are comparing. This is showing the difference between the CS EM and the XS Power V3.  

With that being said, the CorkSport Exhaust Mani has been proven to 685whp on this same car and with the Mazdaspeed CST6 Turbo. We are confident the CS exhaust manifold has far more capacity to support; if we have anything to do with that we will prove it. 

Mazdaspeed Cast Exhaust Manifold with TIAL
Mazdaspeed Exhaust Manifold

Lastly is sound…we’ve been asked a lot about the sound. How will it affect the sound? Will it sound like a Honda now? Will it be louder?  

We knew the sound was critical because let’s be honest…we are all car guys/gals and Mazdaspeed has a great unique sound to it. We did not want to lose that so we did our best to hit performance goals without sacrificing the Mazdaspeed grumble.  

One of our Beta testers put together a great video comparing the sound of OEM vs CorkSport. The car is a GEN1 MS3 with a built engine, full bolt-ons, CST4 Turbo, and Cobb Exhaust system. Check out this video link for sound!

In our design, we kept a varied length runner design to help maintain the Mazdaspeed grumble. We believe we succeeded in keeping that classic grumble, but also refined the sound a bit. We like to describe it as exotic. Either way, the grumble lives on, and honestly, none of our beta testers can stop grinning ear to ear with every WOT pull.  

With that being said act fast! We know these are going to fly off the shelf and we are going to do our damn very best to keep them in stock for everyone, but don’t wait!

Grab yours here!

Thanks for tuning in with CorkSport Mazda Performance.  

-Barett @ CS

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