4th GEN Mazda 3 SRI

4th Gen Mazda 3 Power

We are proud to announce our first product specifically for the 4th GEN (2019+) Mazda 3: the CorkSport Short Ram Intake. Gain horsepower, torque, and some much needed sound from your 2.5L SkyActiv-G in only about 30 short minutes. Features include an AEM dry-flow filter, a billet machined MAF housing, a custom designed reinforced silicone coupler, and stainless steel T-bolt clamps that combine to be a great and simple upgrade for your new MZ3. Read on for more details!

Increase horsepower in your 2019+ Mazda 3 with the easy to install Intake
CS Short Ram Intake

We’ll admit this intake has been a bit of a challenge since Mazda has switched to a new style of MAF sensor that is very sensitive to changing the intake. We’re happy to report that we’ve figured everything out and have had 5 cars successfully testing the intake for hundreds of miles with no issues. Now, onto the fun stuff!

Let’s jump right into the fun stuff: power! By removing the restrictive factory intake and filter, and replacing them with the CorkSport SRI, we were able to pick up 5-7WHP and 5-7WTQ when tested back to back on our dyno. This was tested within an hour or so of each other, with no tuning changes, and with the only change being the intake swap. Check out the dynograph down below! For both intakes, the only other mod on the test car was a prototype CS axle back exhaust (coming soon!). This will not affect power gain from the intake as it was installed for both tests.

Dyno proven power gains for your 4th Gen Mazda 3
CorkSport

Power is not the only benefit though. The CS short ram intake offers a great visual boost to your engine bay. You can even personalize your intake as you can select between red, blue, and black silicone and filter as well as polished or black clamps. Appearance is not even the best part-the CorkSport intake adds some much needed growl to the engine to give some more excitement when you get on the gas. It’s not obnoxious, but noticeable and definitely enjoyable.

The CorkSport Gen 4 Mazda 3 SRI installs in 30 minutes
Check our 4th Gen parts selection

To make the power and great noise, each component in the CS SRI has been optimized for performance. Starting at the filter, an AEM Dry-Flow is used for fantastic air flow capacity without compromising filtration. A non-oiled filter is used specifically to prevent issues with the MAF sensor.

Next comes the billet MAF housing. We use a precision machined MAF sensor housing to ensure the diameter of the intake near the MAF sensor is an exact match to the OEM diameter. This keeps fuel trims in check and keeps the check engine light off. A billet MAF housing has the added benefit of looking great, especially when finished off with an attractive laser etched logo.

We have 3 color options available for the 2019+ Mazda 3 intake
CorkSport Short Ram Intake

The MAF housing connects to the throttle body with a custom designed and reinforced silicone coupler. It is a perfect fit with the OEM throttle body and valve cover vent hose while the four layers of nylon braiding keep the silicone strong for years to come. This piece of silicone has the added benefit of being completely smooth on the inside versus the accordion OEM rubber piece. This helps promote flow into your engine.

Finally, all of the components are tied together with stainless steel T-bolt clamps. These clamps offer superior sealing characteristics over a traditional worm gear clamp and are not prone to stripping like a worm gear clamp.

Mazda3 Gen 4 Performance Air Intake System
CorkSport SRI

The CorkSport GEN4 Mazda 3 Short Ram Intake is finally here and it’s a great upgrade to start getting your 2019+ 3 to perform as good as it looks. Be sure to check out the product listing and video and don’t hesitate to give us a call with any questions!

Skyactiv 2.5T Intake Heat Shield

OEM Look and solid performance power gains for the Mazda 6 Turbo

We’re back with another product for SkyActiv 2.5T owners that a lot of you have requested after getting your CorkSport SRI. Introducing the CorkSport Heat Shield for 2018+ Mazda 6 Turbo, 2019+ Mazda CX-5 Turbo, and 2016+ Mazda CX-9! Cool down your intake air temps in two ways: by blocking heat from the engine bay and by using the OEM ducting to draw in fresh air. This allows your turbo system to breathe just a bit easier, especially during hot days or if you’re stuck sitting in traffic. Plus, it makes the CS SRI look like a factory option performance part!

Read on for full details and be sure to give us a call if you have any questions!

Isolates heat from the Mazda 6 turbo SRI

We really focused on keeping cool air around the filter with the CorkSport SkyActiv 2.5T heat shield. The shield was carefully designed to seal the intake off from as much engine bay heat as possible. This meant a complicated 2 piece design that is riveted together. We also designed the shield to work with the OEM air ducting. This directs cool outside air to the filter, further reducing intake air temps. The shield is also left open to the area in front of the tire, underneath the headlight. We found that this area gets some fresh air during driving as well, further keeping air temps down.

Cx9 Turbo cold air intake heat shield
CorkSport Heatshield

Now what benefits does cooler air offer? The basic generalization is that since cooler air is denser than warmer air, your engine can ingest more air per cycle, and make more power. When a car is turbocharged though, this gets a little more complicated as you have a turbo that compresses and heats up your intake air and then an intercooler that cools down the boosted air before even getting to the engine. What that means is that the “colder air will make more power” generalization may not hold true, especially with how advanced modern turbocharged vehicles have become. What colder intake air does offer you is a less stress on your turbo system. Colder air means your turbo does not have to work as hard to flow the same amount of air at the same boost pressure. In addition, colder intake air can translate to slightly cooler air exiting your turbo and heading to your intercooler, taking some stress off the intercooler as well.

Cx5 Skyactiv 2.5T Performance airbox
See the video

Enough theory, let’s talk results! In both daily driving testing and in torture testing on the dyno, we found decreased intake air temps with the CorkSport Heat Shield installed. When cruising or when it’s cold outside, we were actually surprised at the low intake temps of the CS SRI alone—there’s actually a surprising amount of fresh air that gets into the engine bay. Where the heat shield really comes into its own is when sitting stationary or driving on a very hot day. That’s when we saw our biggest improvements in intake air temp.

While we did not see any notable changes to horsepower, our torture testing on the dyno really shows what a worst case scenario would look like for intake temps. Check out the graph below that compares the CS SRI alone vs. the CS SRI and heat shield combo. This is a little exaggerated due to decreased airflow on the dyno but is similar to what your engine could see when sitting in traffic on a hot day, then accelerating back up to speed.

Performance Skyactiv 2.5T air temp data
CorkSport

The CorkSport Heat Shield is made from laser cut and precision formed carbon steel. We chose carbon steel for great strength and lower heat transfer than aluminum. For corrosion resistance, the heat shield is finished off with wrinkle black powdercoating. This coating also gives the heatshield a great look that helps it blend in with the rest of the engine bay and make the intake system look like a factory performance part! The two sections of the shield are attached together using stainless steel rivets for a great look and long lasting strength. Lastly we include rubber edge seal to keep as much heat out as possible, and to prevent any vibration or unwanted noise.

Mazda Cx5 Turbo Short Ram Intake OEM Look
CS Heatshield

If you’re looking for the next mod your Sky 2.5T or have been holding off on the CS SRI until there was some heat protection, check out the new CorkSport Heat Shield. We are even offering a package deal! If you purchase the heatshield and SRI together you will save $20.

For early adopters of the CS SRI, we have not forgotten about you! We are also offering the same $20 discount on the heatshield for a short time. When placing your order, enter coupon code heatshield20, and in the customer notes, enter your original SRI order number. BAM – $20 Savings!

Finally, we’ve got some new silicone colors coming for the CS SRI! They aren’t quite here yet but if you’re looking to add a splash of color in your engine bay, wait just a bit longer! That’s all for now, be sure to check out the product listing for more images of the heat shield and give us a call if you have questions!


4th Gen Mazda 3 Sport Springs

The 2019+ 4th generation Mazda 3 is a car that certainly divided opinions when it came out. From its divisive looks to the new torsion beam suspension, even we weren’t quite sure what to make of it at first. However, we have since fallen in love with our shop 4th GEN, a big part of it is what we are releasing today: the CorkSport Performance Lowering Springs for 2019+ Mazda 3 (Sedan & Hatchback for both AWD & FWD). Give your new 3 an aggressive look that is sure to turn heads while improving the handling for those twisty backroads!

2019-2020 Mazda 3 lowering springs
Gen 4 Lowering Springs

Let’s start off with the elephant in the room: ride height. When we developed these springs, it was somewhat difficult as we had to account for different body styles, transmission options, and now even driveline options. With all things taken into account, we found the right range of ride height that looks great on the lightest, heaviest, and all options in between.

The perfect balance of lowering for the 2020 Mazda 3
Why Lowering Springs?

On the lightest GEN4: hatchback, front-wheel drive, manual trans, the CS lowering springs offer 1.5” front and 1.8” rear ride height drop. On the heaviest GEN4: sedan, all-wheel drive, auto trans, the CS lowering springs offer 1.6” front and 2.2” rear ride height drop. Depending on your vehicle’s options, you will end up at or between these extremes. Don’t worry though, your ride ends up sitting level no matter what combination of options you have. The images below show the lightest (upper) and heaviest (lower) Mazda 3.

AWD Mazda 3 low down springs
CorkSport

We also focused heavily on improving the handling with the CS GEN4 lowering springs. A lower ride height means a lower center of gravity which when combined with a stiffer spring rate, means less body roll. This improves handling feel and driver confidence when attacking a backroad. We even increased the rear spring rate more than the front to reduce understeer and help with turn-in.

All Lowering Springs

The CorkSport 2019+ MZ3 springs went through a few different iterations of spring rate and ride height before we found the best balance of ride quality, handling, and appearance. The final spring rates are 3.4K front and 5.9K rear. Compared to the OEM rates of 2.23K front, 4.20K rear, we made a decent jump in rate; however, the new springs are well within the OEM damping rates. The ride is obviously stiffer than OEM yet is not bouncy and you can still comfortably daily drive on the springs.

The perfect lowered stance for your 4th Gen Mazda3
CorkSport

During development, we even tested for the natural frequency changes in the suspension from installing lowering springs. Essentially, the natural frequency is a good way to compare how “stiff” one car feels compared to another, even if their suspensions are different (for more background info on natural frequency, check out this blog). We went from an OEM of ~1.6Hz front and rear to 1.75Hz front and 1.8Hz rear on the CS lowering springs. This increase is enough to feel “sporty” but not enough that it will ruin your drive to work.

FWD or AWD the springs work on all 2020 MZ3
Gen 4 Springs

As with all CS lowering springs, they are a direct fit install that can completely change your car in only a few hours. The only permanent modifications are trimming the OEM bump stops to account for the lower ride height. To ensure they will last as long as your car, each spring is made out of high tensile strength spring steel, which is then powder coated blue for corrosion resistance and a great look. The rear springs even include spring silencers to prevent any added noise from the lowering springs.

The CorkSport GEN4 Mazda 3 Lowering Springs have really changed our opinion on the new body style. With the right set of wheels, our CS shop car turns heads all day long and would fit right in at any car show. If you’re ready to upgrade your 3’s handling and give it an aggressive look, we are happy to help! Give us a call if you have any questions, and be sure to check out the product video on the web listing!

CorkSport Mazdaspeed 6 Front Mount Intercooler

The MS6 FMIC installation gives you a stealth install with minor trimming and allows you to keep the windshield washer bottle.

It’s been a long time coming but it has finally returned: the CorkSport Front Mount Intercooler Kit for Mazdaspeed 6! We’ve had many challenges on this project but we’re happy to report that it’s finally here and better than ever. We originally released this way back in 2012 (check out the release blog HERE for a throwback) but the only thing we kept from that kit was the intercooler core itself. All of the piping, silicone, and mounting has been redesigned for best fitment and minimizing trimming needed for install. Check out the images and full info below!

Superior to the factory Mazdaspeed 6 TMIC, the CorkSport FMIC gives you consistent cooling all the time without heat soak

To start things off, let’s look into the intercooler itself. It is a unique design where both the inlet and outlet point toward the driver’s side of the vehicle. This means our pipe routing is a little more complicated than most, but it makes it much easier to fit as you do not need to relocate your windshield washer bottle or deal with any of the fitment issues that come with squeezing a pipe through the passenger side of the car.

The bolt in Mazdaspeed 6 FMIC kit which makes it the best intercooler kit available.

The intercooler core is a high flowing, bar and plate design that measures 21”x10”x3”. This is good for efficient flow up to 500-550WHP yet adds minimal boost lag, even at lower power/boost levels. This big core fits snugly behind the crashbar to eliminate trimming the crashbar or your underbody shields. There is still some trimming required to fit the core and piping, however almost all of it is trimming on plastic components, with one metal cut on a thin sheet metal bracket.

Mazdaspeed 6 FMIC fits up to a 4 inch SRI

Moving onto the piping, the CS intercooler kit uses varied piping sizes for the hot and cold side intercooler pipes. The 2.25” hot side pipe ensures the charge air reaches the intercooler as fast as possible, helping reduce boost lag. The cold side uses 2.5” piping in the first half and 3” piping in the second half. Having this large volume of cool charge air directly in front of the throttle body helps with throttle response and the large diameter further helps with peak flow capacity. This piping setup has proven itself to work great on our GEN2 MS3 FMIC kit, and has been pushed to 684WHP on Barett’s GEN1 (he modified the GEN2 piping to fit his GEN1).

Wire reinforces silicone hoses make the Speed 6 FMIC a quality product

There was painstaking care taken to ensure the kit is as easy as possible to fit on your MS6. The hot pipe has a lot more freedom for intake fitments than our previous kit and we made sure all the CS intakes fit like a glove. Other aftermarket intakes have not been test fit but check out the images, they will give you a good idea if your SRI will fit or not. All the piping is mandrel bent and comes in a polished finish, so it is ready to install right out of the box and look and perform great!

Keeping everything together is the custom designed silicone couplers. You may notice that some of the silicone sections are longer than a typical silicone coupler. This is to ensure the best fitment as some shapes can simply not be made easily in a piece of pipe.

As with most CS silicone components, each coupler uses 4-plys of nylon reinforcement braiding and 5 layers of silicone. This is typically very good at resisting expansion under high levels of boost; however, we wanted to really make sure the long couplers of the MS6 kit do not expand. Any coupler longer than about 6” uses an extra layer reinforcement made of metal wire. This further resists expansion under boost, and even helps keep all the piping stable between mounting locations. While the outside of the coupler may look bumpy, the insides are still very smooth like a typical piece of silicone.

A complete FMIC for the speed6, everything you need to install is included except the tools

Each Mazdaspeed 6 intercooler kit comes with everything you need for install. Stainless steel T-bolt clamps are included for each connection to ensure secure, leak free joints. The intercooler mounting bracket, hardware, and full color install instructions are also included so you know you can get the job done right.

The MS6 FMIC installation gives you a stealth install with minor trimming and allows you to keep the windshield washer bottle.

We’re happy to finally have this out and are excited to see you all get your hands on them. Be sure to drop any questions you may have below and check out the product listing for more images!

MZR DISI Single Runner Intake Manifold Gasket

Mazdaspeed 3 Thermal Barrier Intake Manifold Gasket

The CorkSport Single Runner Intake Manifold Gasket is here! Designed for OEM and upgraded intake manifolds with or without ported cylinder heads on the DISI MZR in the Mazdaspeed 3, Mazdaspeed 6, and Mazda CX-7 Turbo, the CS IM gasket is one of those things you don’t realize you need until it’s too late. The OEM gasket often fails to seal once reused and can cause a restriction when going to enlarged ports. This can be frustrating as who wants to take their car back apart after a manifold upgrade because of a stupid gasket? If this sounds familiar, read on as we introduce you to the CS single runner gasket!

Mazdaspeed 3 Thermal Barrier Intake Manifold Gasket

We collaborated with Cometic gaskets to design the intake manifold gasket; testing multiple materials to really determine what will hold up to the abuse of a Mazdaspeed. Cometic’s Aluminum Foamette Material (AFM) in 0.060” thickness was by far the best choice. It uses an aluminum core surrounded by a synthetic nitrile rubber coating. This material seals fantastically well, even if there are some minor surface imperfections or even O-ring grooves that are present with some aftermarket intake manifolds. This material is also resistant to motor oil and fuels, plus can be reused should you need to perform valve cleaning or have to take your intake manifold off for an install.

The Mazdaspeed 3 intake manifold gasket fits with stock and most aftermarket intake manifolds found on the Speed 3 Speed 6 and Cx7

Aside from offering better sealing than an OEM gasket, the CS IM gasket offers performance benefits. When going for more power, it is very common to upgrade the port sizes on the intake manifold and/or cylinder head. Doing this and reusing an OEM gasket can leave an edge of a gasket or even the center dividers of the OEM gasket in the way of airflow. The CorkSport IM gasket eliminates this problem by using enlarged ports that will suit the most aggressive of porting with no flow restriction. Plus, we went to a single runner opening to eliminate the divider present in the OEM gasket to further prevent flow restrictions. There is also the added safety benefit, as a piece of an OEM gasket hanging in the airflow path could break off and enter the engine which would never end well. This is truly a performance gasket, meant to give you room for whatever flow you want to put through it.

The Single runner MZR intake gasket goves the best flow without the divider obstruction in the intake runner

There is also a less obvious performance benefit than flow: thermal insulation. OEM gaskets are made out of metal, which means as your engine heats up, this heat can directly transfer easily into your intake manifold. This is also an issue with O-ring sealing as the intake manifold is directly touching the cylinder head. More heat in your intake manifold means it’s harder for your boosted air temps to stay cool when traveling through your intake manifold. While not a huge benefit, colder charge air will always help you make more power. Since the CorkSport Single Runner IM Gasket has the synthetic nitrile rubber coating, heat transfer into the intake manifold is more difficult, keeping your charge air just that little bit cooler!

The Speed6 gasket allows for plenty of space for porting if you are going to the maximum on your MZR DISI engine.

The CorkSport IM gasket comes with a spacer for the lower mount of the intake manifold made of the same AFM material. This is critical as the CS gasket is six times thicker than OEM so the lower mount no longer lines up properly. Failure to use a spacer like this can cause leaks at the cylinder head flange or worst case, warping or damage to your intake manifold or cylinder head.

Mazda MPS 3 and MPS 6 performance intake manifold gasket

The CorkSport Single Runner Intake Manifold Gasket is a great upgrade to optimize your manifold upgrade or simply ensure your next maintenance day goes smoothly. Let us know if you have any questions and visit the product listing if you’d like to pick one up!